View source for List of converts to Catholicism

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The following is an incomplete list of notable individuals who [[Religious conversion|converted]] to [[Catholic Church|Catholicism]] from a different [[religion]] or [[Irreligion|no religion]].
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==Converts==
{{Compact TOC}}

===A===
* [[Hank Aaron]]: American professional baseball right fielder who played 23 seasons in [[Major League Baseball]] (MLB), from 1954 through 1976; regarded as one of the greatest baseball players of all time. He and his wife first became interested in the faith after the birth of their first child. A friendship with a Catholic priest later helped lead to Hank and his wife's conversion in 1959. He was known to frequently read [[Thomas à Kempis]]' 15th-century book ''[[The Imitation of Christ]]'', which he kept in his locker.<ref>{{Cite web|title=The Catholic Northwest Progress 8 May 1959 — Washington Digital Newspapers|url=https://washingtondigitalnewspapers.org/?a=d&d=CATHNWP19590508.2.149&e=-------en-20--1--txt-txIN-------|access-date=2021-01-23|website=washingtondigitalnewspapers.org}}</ref><ref>{{Cite web|date=2021-01-22|title=Hank Aaron, baseball's one-time home run king (and a Catholic convert), dies at 86|url=https://www.americamagazine.org/arts-culture/2021/01/22/obituary-hank-aaron-catholic-239809|access-date=2021-01-23|website=America Magazine|language=en}}</ref>
* [[Greg Abbott]]: 48th Governor of Texas<ref>Sweany, Brian D. [http://www.texasmonthly.com/story/overcomer?fullpage=1 The Overcomer], ''[[Texas Monthly]]'', October 2013</ref>
* [[Creighton Abrams]]: [[U.S. Army]] General, converted while commanding US forces in Vietnam
* [[Vladimir Abrikosov]]: Russian who became an Eastern-rite priest; husband to [[Anna Abrikosova]]<ref>{{cite book |page=[https://books.google.com/books?id=HnUnJ7X10BMC&pg=PA158 158] |title=The Forgotten: Catholics of the Soviet Empire from Lenin Through Stalin |first=Christopher Lawrence |last=Zugger |date=1 January 2001 |publisher=Syracuse University Press}}</ref>
* [[Anna Abrikosova]]: Russian convert to Eastern-rite Catholicism who was imprisoned by the Soviets<ref>{{cite book |page=[https://books.google.com/books?id=FaioEZgRBhUC&pg=PA119 119] |title=Remembering the Darkness: Women in Soviet Prisons |first=Veronica |last=Shapovalov |date=1 January 2001 |publisher=Rowman & Littlefield}}</ref>
* [[John Adams (Catholic martyr)|John Adams]]: beatified person and Catholic martyr<ref>{{cite CE1913 |wstitle=Ven. John Adams |first=Patrick W. R. |last=Ryan |volume=1}}</ref>
* [[Mortimer J. Adler]]: American philosopher, educator, and popular author; converted from agnosticism, after decades of interest in [[Thomism]]<ref>{{cite web |url=http://nl.newsbank.com/nl-search/we/Archives?p_product=GF&s_site=grandforks&p_multi=GF&p_theme=realcities&p_action=search&p_maxdocs=200&p_topdoc=1&p_text_direct-0=0ED204007349019A&p_field_direct-0=document_id&p_perpage=10&p_sort=YMD_date:D&s_trackval=GooglePM |title=Grand Forks Herald: Search Results |access-date=24 March 2017}}</ref>
* [[Afonso I of Kongo]]: African king; although politically motivated he became quite pious<ref>{{cite web |url=http://www.bbc.co.uk/worldservice/africa/features/storyofafrica/8chapter3.shtml |title=The Story of Africa- BBC World Service |access-date=24 March 2017}}</ref>
* [[Sohrab Ahmari]]: Iranian-American columnist, editor, and author of nonfiction books.<ref>{{Cite book|last=Ahmari|first=Sohrab|title=From Fire, by Water: My Journey to the Catholic Faith|publisher=Ignatius Press|year=2019|isbn=978-1621642022}}</ref>
* [[Leo Allatius]]: Greek theologian<ref>[http://www.ascsa.edu.gr/gennadius/English/Allatius.htm Gennadius Library] {{webarchive|url=https://web.archive.org/web/20040214035136/http://www.ascsa.edu.gr/gennadius/English/Allatius.htm |date=14 February 2004 }}</ref>
* [[Fanny Allen]]: daughter of [[Ethan Allen]]; became a nun<ref>[http://www.fletcherallen.org/about/welcome/our_history/our_history.html Fletcher Allen Healthcare] {{webarchive|url=https://web.archive.org/web/20110916115544/http://www.fletcherallen.org/about/welcome/our_history/our_history.html |date=16 September 2011 }}</ref><ref>{{cite book |page=[https://books.google.com/books?id=uTBCXqOou0YC&q=fanny&pg=PA38 231] |title=The Vermont Encyclopedia |first1=John J. |last1=Duffy |first2=Samuel B. |last2=Hand |first3=Ralph H. |last3=Orth |date=1 January 2003 |publisher=UPNE}}</ref>
* [[Thomas William Allies]]: English writer<ref>{{cite CE1913 |first=Mary Helen Agnes |last=Allies |wstitle=Thomas William Allies |volume=1}}</ref>
*[[Svetlana Alliluyeva]]: daughter of [[Joseph Stalin]]<ref>{{Cite web|url=http://www.hazteoir.org/noticia/42644-muerte-svetlana-hija-stalin-que-se-convirtio-catolicismo|title=11b|access-date=28 October 2018|archive-date=16 July 2019|archive-url=https://web.archive.org/web/20190716162449/http://www.hazteoir.org/noticia/42644-muerte-svetlana-hija-stalin-que-se-convirtio-catolicismo|url-status=dead}}</ref>
* [[Rose Hawthorne Lathrop|Mother Mary Alphonsa]]: daughter of [[Nathaniel Hawthorne]], born "Rose Hawthorne"; became a nun and founder of St. Rose's Free Home for Incurable Cancer<ref>[https://docs.google.com/viewer?a=v&q=cache:KRY1WQYWMhIJ:www.hawthorne-dominicans.org/Aid.doc+%22Rose+Hawthorne+lathrop%22&hl=en&gl=us&pid=bl&srcid=ADGEESjs7lxIkDGUPGf8gA-nnzVEvTewHksjRFkqX2_lz9NJDmnicjeRggRyiOxabS_oekIu8Q0yZ8D5GgH_9oWeRRjQ2esKQCC-wyKc4iDzPfnDhFLIt6BZwM2G5FC7Y0li_ibfDTks&sig=AHIEtbSHAz4ZKEFsU4qUm4q78YPSFaLP1A Rose Hawthorne Lathrop Papers]</ref><ref>{{cite book |url=https://books.google.com/books?id=iw195Ujth9cC&pg=PA100 |title=To Myself A Stranger: A Biography of Rose Hawthorne Lathrop |first=Patricia Dunlavy |last=Valenti |date=1 March 1999 |publisher=LSU Press|isbn=9780807124734 }}</ref>
* [[Veit Amerbach]]: Lutheran theologian and humanist before conversion<ref>{{cite CE1913 |wstitle=Veit Amerbach |first=Francis William |last=Grey |volume=1}}</ref>
* [[William Henry Anderdon]]: English Jesuit and writer<ref>{{cite CE1913 |wstitle=William Henry Anderdon |first=Edward Peter |last=Spillane |volume=1}}</ref>
* [[Władysław Anders]]: General in the Polish Army; later a politician with the Polish government-in-exile in London<ref>{{Cite web|url=http://anders.wsiz.rzeszow.pl/varia.html|archive-url=https://web.archive.org/web/20160303171308/http://anders.wsiz.rzeszow.pl/varia.html |url-status=dead |title=Władysław Anders on Technical University Rzeszów|archive-date=3 March 2016}}</ref>
* [[G. E. M. Anscombe]]: [[Analytic philosophy|British analytical philosopher]] and [[theologian]] who introduced the term "[[consequentialism]]" into the English language. Wife of [[Peter Geach]]<ref>{{cite news |url=https://www.theguardian.com/Archive/Article/0,4273,4115443,00.html |title=Elizabeth Anscombe |first=Jane |last=O'Grady |date=10 January 2001 |newspaper=The Guardian |access-date=24 March 2017}}</ref>
* [[Francis Arinze]]: Nigerian [[Cardinal (Catholicism)|Cardinal]] and Prefect of the [[Congregation for Divine Worship and the Discipline of the Sacraments]]<ref>{{cite news |url=http://news.bbc.co.uk/2/hi/africa/4445821.stm |title=BBC NEWS - Africa - Profile: Cardinal Francis Arinze |date=18 April 2005 |access-date=24 March 2017}}</ref>
* [[Gavin Ashenden]]: English writer, broadcaster and theologian. Former Chaplain to the Queen and Episcopalian bishop. Converted in December 2019.<ref>{{Cite web|url=https://catholicherald.co.uk/gavin-ashenden-why-im-becoming-a-catholic/|title=Gavin Ashenden: Why I'm becoming a Catholic|first=The Catholic|last=Herald|date=18 December 2019}}</ref>
* [[Thomas Aufield]]: English priest and martyr<ref>{{cite CE1913 |wstitle=Ven. Thomas Alfield |first=Patrick W. R. |last=Ryan |volume=14}}</ref>
* [[Augustine of Hippo]]: theologian, philosopher, and the bishop of [[Hippo Regius]] in [[Numidia]], [[Roman North Africa]]. His writings influenced the development of Western philosophy and Western Christianity, and he is viewed as one of the most important [[Church Fathers]] of the Latin Church in the Patristic Period. He was raised by a Catholic Mother, [[Saint Monica|Monica]], but joined the [[Manichean]] sect before converting and being baptized into the Catholic faith at the age of 31.

===B===
* [[Johann Christian Bach]]: composer; youngest son of [[Johann Sebastian Bach]]<ref>{{cite web |url=http://www.pianosociety.com/cms/index.php?section=1860 |title=Johann Christian Bach - Piano Society |access-date=24 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20160304051930/http://www.pianosociety.com/cms/index.php?section=1860 |archive-date=4 March 2016}}</ref>
* [[Thomas Bailey (priest)|Thomas Bailey]]: royalist and controversialist; his father was Anglican bishop [[Lewis Bayly]]<ref>{{cite CE1913 |wstitle=Thomas Bailey |first=Edwin Hubert |last=Burton |volume=2}}</ref>
* [[Beryl Bainbridge]]: English novelist<ref>[http://a.khmelnik.googlepages.com/BainbridgeOnWriting.html Guardian Unlimited Books] {{Webarchive|url=https://web.archive.org/web/20080308134306/http://a.khmelnik.googlepages.com/BainbridgeOnWriting.html |date=8 March 2008 }}: "I wanted it for hellfire and candles. I was married in a Catholic church and I prefer going to a Catholic service, but it changed, like everything else. Even in the Catholic church now they tell you to turn round and shake hands." She looks aghast.</ref>
*[[Bessie Anstice Baker]], Australian writer and philanthropist, author of ''A Modern Pilgrim's Progress''<ref>{{Cite Australian Dictionary of Biography|last=Downs|first=Stephen|title=Elizabeth Anstice (Bessie) Baker (1849–1914)|id2=baker-elizabeth-anstice-bessie-12782|year=2005|volume=Supplement|access-date=2021-08-10}}</ref>
* [[Francis Asbury Baker]]: American priest, missionary, and social worker; one of the founders of the [[Paulist Fathers]] in 1858<ref>{{cite CE1913 |wstitle=Francis Asbury Baker |first=Michael Paul |last=Smith |volume=2}}</ref>
* [[Josephine Bakhita]]: Sudanese-born former slave; became a [[Canossians|Canossian]] [[Religious Sister]] in Italy, living and working there for 45 years; in 2000 she was declared a [[saint]]<ref>{{cite web |url=http://www.afrol.com/archive/josephine_bakhita.htm |title=AFROL Background Josephine Bakhita - an African Saint |publisher=Africa Online News |access-date=24 March 2017}}</ref>
* [[Banine]]: French writer of [[Azerbaijanis|Azeri]] descent<ref>{{Cite web|url=http://files.preslib.az/projects/azerbaijan/eng/gl6.pdf|title=Administrative Department of the President of the Republic of Azerbaijan, p. 57}}</ref><ref>{{cite book |page=[https://books.google.com/books?id=pMzMYx_Wl34C&dq=%22Banine%22+converted+catholicism&pg=PA217 217] |title=About Being a Priest |first=Federico |last=Suárez |date=1 January 2009 |publisher=Scepter Publishers}}</ref>
*[[Daniel Barber (minister)|Daniel Barber]]: An American priest of the [[Episcopal Church (United States)|Episcopal Church]] before his conversion to Catholicism<ref>{{Cite web|title=CATHOLIC ENCYCLOPEDIA: The Barber Family|url=https://www.newadvent.org/cathen/02286b.htm|access-date=2021-11-23|website=www.newadvent.org}}</ref>
* [[Maurice Baring]]: English intellectual, writer, and war correspondent<ref>{{cite book |page=[https://archive.org/details/certainclimatees00horg/page/135 135] |title=A Certain Climate: Essays in History, Arts, and Letters |first=Paul |last=Horgan |date=1 June 1988 |publisher=Wesleyan University Press}}</ref><ref>{{cite web |url=http://www.spectator.co.uk/books/246306/whats-become-of-baring/ |title=What's become of Baring? - The Spectator |date=10 October 2007 |access-date=24 March 2017}}</ref>
* [[Mark Barkworth]]: English Catholic priest, martyr, and beatified person<ref>{{cite CE1913 |wstitle=Ven. Mark Barkworth |first=Bede |last=Camm |volume=2}}</ref>
* [[Barlaam of Seminara]]: involved in the [[Hesychast controversy]] as an opponent to [[Gregory Palamas]], possibly a revert<ref>{{Cite book |last=Runciman |first=Steven |url=https://books.google.com/books?id=Vm5OGIBgoHMC&dq=Synodicon+of+Orthodoxy+Palamas&pg=PA144 |title=The Great Church in Captivity: A Study of the Patriarchate of Constantinople from the Eve of the Turkish Conquest to the Greek War of Independence |date=1985-10-24 |publisher=Cambridge University Press |isbn=978-0-521-31310-0 |language=en}}</ref>
* [[Arthur Barnes (monsignor)|Arthur Barnes]]: formerly an Anglican priest, who became a Catholic writer and the first Catholic chaplain of both Cambridge and Oxford Universities<ref>McLelland, Vincent Alan, "The Universities' Catholic Education Board and the Chaplains, 1895-1939", ''The Ampleforth Journal'', (1973: Vol LXXVIII), pp 69 - 84, at p 72.</ref>
* [[Edwin Barnes]]: formerly an Anglican bishop<ref name="BBC11709148" >{{cite web |url=https://www.bbc.co.uk/news/uk-11709148 |title=Five Anglican bishops join Catholic Church |date=8 November 2010 |publisher=BBC |access-date=24 March 2017}}</ref>
* [[Joan Bartlett]]: foundress of the Servite Secular Institute<ref>{{cite news |url=https://www.telegraph.co.uk/news/obituaries/1408848/Joan-Bartlett.html |title=Joan Bartlett |newspaper=The Daily Telegraph|access-date=24 March 2017}}</ref>
* [[James Roosevelt Bayley]]: first bishop of the [[Roman Catholic Archdiocese of Newark|Catholic Archdiocese of Newark]]<ref>{{cite web |url=http://www.shu.edu/academics/theology/sesquicentennial/sheperds-seminary.cfm |title=Shepherds of the Seminary - Seton Hall University, New Jersey |access-date=24 March 2017 |archive-date=11 July 2010 |archive-url=https://web.archive.org/web/20100711062416/http://www.shu.edu/academics/theology/sesquicentennial/sheperds-seminary.cfm |url-status=dead }}</ref> and eighth Archbishop of Baltimore
* [[Aubrey Beardsley]]: English illustrator and author; before his death, converted to Catholicism and renounced his erotic drawings<ref>{{cite web |url=https://www.nytimes.com/books/98/09/20/bib/980920.rv103716.html |title=Aubrey Beardsley |website=[[The New York Times]] |access-date=24 March 2017}}</ref>
* [[Francis J. Beckwith]]: American philosopher, [[Baylor University]] professor, and former president of the [[Evangelical Theological Society]]; technically a revert<ref>{{Cite web|url=https://sites.baylor.edu/francisbeckwith/|archive-url=https://web.archive.org/web/20050901130050/http://www.francisbeckwith.com/ |url-status=dead |title=Francis J. Beckwith|archive-date=1 September 2005|website=sites.baylor.edu}}</ref>
* [[Jean Mohamed Ben Abdeljlil]]: Moroccan scholar and Catholic priest<ref>{{cite web |url=http://www.franciscains-paris.org/articles.php?lng=fr&pg=24 |title=Le site des Franciscains de Paris - Jean-Mohammed Abd-el-Jalil |last=Luc |access-date=24 March 2017}}</ref>
* [[Benedict Gregorios|Benedict Mar Gregorios]]: [[List of archbishops of Trivandrum|Metropolitan Archbishop of Trivandrum]], 1955–1994<ref>{{Cite web|url=http://archive.catholicherald.co.uk/article/5th-april-1957/8/indian-jacobite-priest-received|title=Indian Jacobite Priest Received - from the Catholic Herald Archive|website=archive.catholicherald.co.uk}}</ref><ref>{{cite web |url=http://malankaracatholicchurchuk.com/benedict-mar-gregorios.html |title=Malankara Catholic Church site |access-date=24 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20160304032427/http://malankaracatholicchurchuk.com/benedict-mar-gregorios.html |archive-date=4 March 2016}}</ref>
* [[Peter Benenson]]: founder of [[human rights]] group [[Amnesty International]]<ref>{{Cite web|url=https://www.amnesty.org/en/documents/act30/005/2001/en/|title=Peter Benenson: Biography|website=Amnesty International}}</ref>
* [[Robert Hugh Benson]]: English writer and theologian; son of an [[Archbishop of Canterbury]]<ref>{{cite web |url=http://archives.nd.edu/episodes/visitors/rhb/bensonc.htm |title=Confessions of a Convert |access-date=24 March 2017}}</ref>
* [[Elizabeth Bentley]]: former Soviet spy who defected to the West; was converted by Archbishop [[Fulton J. Sheen]]
* [[Bernard Berenson]]: American [[art historian]] specializing in [[the Renaissance]].<ref>{{cite news |url=https://www.nytimes.com/1979/11/04/archives/devotee-of-beauty-berenson.html
 |title=Russell, John (November 4, 1979). "Devotee Of Beauty; Berenson"|newspaper=The New York Times|date=4 November 1979|last1=Russell|first1=John}}</ref>
* [[Mary Kay Bergman]]: American voice actress
* [[Bernardo the Japanese]]: one of the first Japanese people to visit Europe<ref>{{cite book |page=[https://books.google.com/books?id=0x1Io6VOuAIC&pg=PA672 672] |title=Asia in the Making of Europe, Volume I: The Century of Discovery. |first=Donald F. |last=Lach |date=16 April 1994 |publisher=University of Chicago Press}}</ref>
* [[Jiao Bingzhen]]: painter and astronomer<ref>{{cite book |page=[https://books.google.com/books?id=6XGfPyVNvWkC&pg=PA69 69] |title=China on Paper: European and Chinese Works from the Late Sixteenth to the Early Nineteenth Century |first1=Marcia |last1=Reed |first2=Paola |last2=Demattè |date=1 January 2011 |publisher=Getty Publications}}</ref>
* [[Conrad Black]]: Canadian-born historian, columnist, UK peer, and convicted felon for fraud; his conviction was overturned subsequently on appeal<ref>{{cite news |url=http://blogs.telegraph.co.uk/news/damianthompson/100009179/conrad-black-i-have-found-serenity-through-catholicism-in-jail/ |archive-url=https://web.archive.org/web/20090918013252/http://blogs.telegraph.co.uk/news/damianthompson/100009179/conrad-black-i-have-found-serenity-through-catholicism-in-jail/ |url-status=dead |archive-date=18 September 2009 |title=Opinion |newspaper=The Daily Telegraph|access-date=24 March 2017}}</ref>
* [[Tony Blair]]: former [[Prime Minister of the United Kingdom]]; converted 22 December 2007, after stepping down as prime minister<ref>{{cite news |url=http://news.bbc.co.uk/1/hi/uk/7157409.stm |work=BBC News |title=Tony Blair joins Catholic Church |date=22 December 2007 |access-date=8 May 2010}}</ref>
* [[Andrea Bocelli]]: Italian tenor<ref>Panza, Pierluigi (21 September 1999).[http://archiviostorico.corriere.it/1999/settembre/21/Bocelli_inno_per_Papa_nasce_co_0_9909214577.shtml "Bocelli, l'inno per il Papa nasce a Lourdes"] (in Italian), ''[[Corriere della Sera]]''.</ref>
* [[Cherry Boone]]: daughter of devoutly evangelical Christian entertainer [[Pat Boone]]; she went public about her battle with [[anorexia nervosa]]<ref>{{cite web|url=http://www.lrc.edu/rel/blosser/contemporary_catholic_converts.htm |title=Contemporary Catholic Converts Tell Their Stories |access-date=24 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20080313024718/http://www.lrc.edu/rel/blosser/contemporary_catholic_converts.htm |archive-date=13 March 2008 }}</ref>
* [[John Wilkes Booth]]: 19th-century actor; assassin of President Abraham Lincoln; his sister [[Asia Booth]] asserted in her 1874 memoir that Booth, baptized an Episcopalian at age 14, had become a Catholic; for the good of the Church during a notoriously anti-Catholic time in American history, Booth's conversion was not publicized<ref>{{cite book |last1=Head |first1=Constance |title="Insights On John Wilkes Booth From His Sister Asia's Correspondence", Lincoln Herald, Winter 1980, Volume 82, No. 4, p. 542, 543}}</ref>
* [[Robert Bork]]: American jurist and unsuccessful nominee to the [[United States Supreme Court]]; converted to Catholicism in 2003; his wife was a former Catholic nun<ref>{{cite web |url=http://www.catholiceducation.org/articles/catholic_stories/cs0048.html |title=Judge Bork Converts to the Catholic Faith |access-date=17 August 2007 |work=National Catholic Register}}</ref>
* [[Louis Bouyer]]: French theologian; converted to Catholicism in 1939
*[[James Bowie|Jim Bowie]]: [[American pioneer]], [[Slavery|slave smuggler and trader]], and [[soldier]] who played a prominent role in the [[Texas Revolution]]. Bowie was baptized in San Antonio on April 28, 1828, sponsored by the [[alcalde]] (chief administrator) of the town, [[Juan Martín de Veramendi]], and his wife, Josefa Navarro. His conversion was to take advantage of a land grant<ref>{{Cite book|last=Sears|first=Edward S.|title=From Hell to Breakfast|publisher=University of North Texas Press|year=2000|isbn=1-57441-099-7|editor-last=Boatright|editor-first=Mody C.|location=Denton, TX|chapter=The Low Down on Jim Bowie|editor2-last=Day|editor2-first=Donald}}</ref><ref>{{Cite web|last=Soodalter|first=Ron|date=2017-11-01|title=Jim Bowie: Knife-Wielding Son of Kentucky|url=http://www.kentuckymonthly.com/api/content/f01828e6-bf2b-11e7-ba8c-121bebc5777e/|access-date=2021-10-08|website=kentuckymonthly.com|language=en-us}}</ref>
* John Randal Bradburne: warden of the leper colony at Mutoko, Rhodesia and a candidate for canonization<ref>Shingai Nyoka
20 September 2019 Why Briton John bradburne could become Zimbabwe's first Catholic saint BBC News</ref> 
* [[William Maziere Brady]]: Irish historian and journalist, formerly a [[Church of Ireland]] priest<ref>{{cite book |last=Bowen |first=Desmond |url=https://archive.org/details/paulcardinalcull0000bowe |title=Paul Cardinal Cullen and the Shaping of Modern Irish Catholicism |date=24 October 1983 |publisher=Wilfrid Laurier Univ. Press |isbn=9780889201361 |pages= |url-access=registration}}</ref><ref>{{cite CE1913 |wstitle=William Maziere Brady |first=Edward Peter |last=Spillane |volume=2}}</ref>
* [[Elinor Brent-Dyer]]: English writer<ref>{{cite web|url=http://www3.shropshire-cc.gov.uk/brentdye.htm |title=Shropshire bio |access-date=24 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20051124012502/http://www3.shropshire-cc.gov.uk/brentdye.htm |archive-date=24 November 2005 }}</ref>
* [[Alexander Briant]]: one of the [[Forty Martyrs of England and Wales]]<ref>{{cite CE1913 |wstitle=Bl. Alexander Briant |first=Eugene Francis |last=Saxton |volume=1}}</ref>
* [[John Broadhurst]]: formerly an Anglican bishop; also a revert<ref name="BBC11709148" />
*[[Heywood Broun]]: sportswriter, columnist, author; was converted by Archbishop Fulton J. Sheen 
* [[George Mackay Brown]]: Scottish poet, author and dramatist from the Orkney Islands<ref>{{cite periodical |url=http://www.thetablet.co.uk/reviews/247 |title=Poet's exile in an island Eden: The Collected Poems of George Mackay Brown |first=Robert |last=Nye |periodical=The Tablet |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20080305124254/http://www.thetablet.co.uk/reviews/247 |archive-date=2008-03-05}}</ref>
* [[Sam Brownback]]: Governor of Kansas<ref>[https://www.boston.com/news/globe/magazine/articles/2003/11/02/the_crusaders/ Boston Globe]: McCloskey personally baptized Judge Robert Bork, political pundits Robert Novak and Lawrence Kudlow, publisher [[Alfred S. Regnery]], financier Lewis Lehrman, and US Republican Senator Sam Brownback of Kansas</ref>
* [[Orestes Brownson]]: American writer<ref>{{cite CE1913 |first=Henry Francis |last=Brownson |wstitle=Orestes Augustus Brownson |volume=3}}</ref><ref>{{cite CE1913 |wstitle=Orestes Augustus Brownson |volume=3 |first=Henry Francis |last=Brownson}}</ref>
* [[Dave Brubeck]]: American jazz musician<ref>{{cite web |url=https://www.pbs.org/brubeck/theMusic/brubeckRediscovers.htm |title=PBS: Rediscovering Dave Brubeck - With Hedrick Smith |publisher=[[PBS]] |access-date=24 March 2017}}</ref>
* [[Elizabeth Bruenig]]: American journalist working as an opinion writer for ''[[The Atlantic]]''.<ref>{{Cite web|date=2017-07-25|title=How Augustine's Confessions and left politics inspired my conversion to Catholicism|url=https://www.americamagazine.org/faith/2017/07/25/how-augustines-confessions-and-left-politics-inspired-my-conversion-catholicism|access-date=2020-09-28|website=America Magazine|language=en}}</ref>
* [[David-Augustin de Brueys]]: French theologian and dramatist<ref>{{cite CE1913 |wstitle=David-Augustin de Brueys |first=Charles Albert |last=Dubray |volume=3}}</ref>
* [[Ismaël Bullialdus]]: French astronomer; converted from Calvinism and became a Catholic priest<ref>{{cite web |url=http://www-gap.dcs.st-and.ac.uk/~history/Biographies/Boulliau.html |title=Boulliau biography |publisher=[[St Andrews University]] |access-date=24 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20161130062658/http://www-gap.dcs.st-and.ac.uk/~history/Biographies/Boulliau.html |archive-date=30 November 2016}}</ref>
* [[Andrew Burnham (priest)|Andrew Burnham]]: formerly an Anglican bishop<ref name="BBC11709148" />
* [[Jeb Bush]]: American politician, forty-third Governor of Florida<ref>[https://web.archive.org/web/20080302031223/http://www.time.com/time/magazine/article/0,9171,988455-1,00.html Time Magazine]: Bush recently made perhaps the ultimate leap for the son of the ultimate Wasp: he converted to Catholicism.</ref>
* [[Thomas Byles]]: priest who died serving others on the [[RMS Titanic|RMS ''Titanic'']]<ref>{{cite web |url=http://www.encyclopedia-titanica.org/titanic-victim/fr-byles.html |title=Father Thomas Roussel Byles, Catholic Priest and Titanic Victim - Fr Thomas Roussel Davids Byles |date=6 April 1997 |publisher=Encyclopedia Titanica |access-date=24 March 2017}}</ref><ref>{{cite web |url=https://www.bbc.co.uk/news/uk-england-essex-17583535 |title=Titanic 100: The Essex priest who refused to leave passengers |date=14 April 2012 |publisher=BBC |access-date=24 March 2017}}</ref>

===C===
* [[Roy Campbell (poet)|Roy Campbell]]: South-African-born, English-based (later Portuguese-based) poet<ref>[[Washington University in St. Louis]]. {{Cite web |url=http://library.wustl.edu/units/spec/manuscripts/mlc/campbell/campbell.html |title=Roy Campbell, 1901-1957. South African author |access-date=4 June 2007 |archive-date=4 March 2008 |archive-url=https://web.archive.org/web/20080304071416/http://library.wustl.edu/units/spec/manuscripts/mlc/campbell/campbell.html |url-status=bot: unknown }}: He became a Roman Catholic in 1935 and fought for Franco in Spain.</ref>
* [[Edmund Campion]]: Jesuit martyr who wrote ''Decem Rationes'', which denounced Anglicanism; one of the [[Forty Martyrs of England and Wales]]<ref>{{cite web |url=http://www.berkshirehistory.com/articles/campion_lyford.html |title=RBH: The Arrest of St. Edmund Campion at Lyford Grange, Berkshire (Oxfordshire) |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20131011014712/http://www.berkshirehistory.com/articles/campion_lyford.html |archive-date=11 October 2013 |url-status=dead }}</ref>
* [[Alexis Carrel]]: [[French people|French]] surgeon and biologist who was awarded the [[Nobel Prize in Physiology or Medicine]] in 1912<ref name="Alexis Carrel 1939">Alexis Carrel, ''The Voyage to Lourdes'' (New York, Harper & Row, 1939).</ref>
* [[Rianti Cartwright]]: [[Demographics of Indonesia|Indonesian]] actress, model, presenter and VJ; two weeks before departure to the United States to get married, Rianti left the Muslim faith to become a baptized Catholic with the name Sophia Rianti Rhiannon Cartwright<ref>"KapanLagi.com: Rianti Cartwright: JOMBLO Dekat Dengan Realitas"</ref><ref>[https://web.archive.org/web/20121030072337/http://img408.imageshack.us/img408/2461/pamfletrianticartwright.jpg] perkawinan katolik</ref>
* [[Kenneth Clark]]: British art historian, museum director, and broadcaster. Converted shortly before his death.<ref>"Memorial services: Lord Clark, OM, CH", ''The Times'', 14 October 1983, p. 14</ref>
* [[Charles II of England]], [[Kingdom of Scotland|Scotland]], and [[Kingdom of Ireland|Ireland]]: King Charles signed a treaty with [[King Louis XIV]] in which he agreed to convert to Catholicism. His conversion occurred on his deathbed.<ref>{{cite web|title=Charles II of England|url=https://www.biography.com/royalty/charles-ii-of-england|access-date=3 May 2020}}</ref>
* [[G.K. Chesterton]]: British writer, journalist and essayist, known for his Christian apologetics ''[[Orthodoxy (book)|Orthodoxy]]'', ''[[Heretics (book)|Heretics]]'' and ''[[The Everlasting Man]]''<ref>{{Cite web |url=http://www.ewtn.com/library/CHRIST/CONVERSI.TXT |title=Archived copy |access-date=20 September 2012 |archive-date=10 July 2012 |archive-url=https://web.archive.org/web/20120710171636/http://www.ewtn.com/library/CHRIST/CONVERSI.TXT |url-status=dead }}</ref>
* [[Christina, Queen of Sweden]]: seventeenth-century monarch<ref>{{Cite web|url=http://www.saintpetersbasilica.org/Grottoes/Queen%20Christina/Queen%20Christina.htm|title=None}}</ref>
* [[Djibril Cissé]]: [[French people|French]] international footballer<ref>{{cite web|url=http://www.netglimse.com/celebs/pages/djibril_cisse/index.shtml |title=Djibril Cisse Biography |publisher=Netglimse.com |access-date=16 February 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120217022348/http://www.netglimse.com/celebs/pages/djibril_cisse/index.shtml |archive-date=17 February 2012 }}</ref><ref>{{Cite web|url=http://www.pelerin.info/Actu-decryptee/Societe/Mondial-ces-joueurs-de-foot-ont-la-foi|archive-url=https://web.archive.org/web/20111002024820/http://www.pelerin.info/Actu-decryptee/Societe/Mondial-ces-joueurs-de-foot-ont-la-foi|url-status=dead|title=Mondial: ces joueurs de foot ont la foi!, Benoît Fidelin, Pèlerin N° 6654, June 10, 2010|archive-date=2 October 2011}}</ref>
*[[Wesley Clark]]: U.S. Army General; former Supreme Allied Commander Europe of NATO; candidate for Democratic nomination for President in 2004<ref>{{cite web |url=http://www.beliefnet.com/News/Politics/2004/01/Presidential-Candidates-On-Religion.aspx |title=Presidential Candidates on Religion |access-date=24 March 2017}}</ref>
* [[Buffalo Bill Cody]]: American soldier, bison hunter, and showman. Converted the day before his death<ref>{{Cite book|last=Weber|first=Francis J.|title=America's Catholic Heritage: Some Bicentennial Reflections, 1776–1976|publisher=University of Wisconsin|year=1979|location=Madison|pages=49}}</ref>
*[[Stephen Colbert]]: American comedian, writer, actor, political commentator, and host of [[the Late Show with Stephen Colbert]]: he was raised in a religious household, later to depart to [[atheism]] in his youth. However, in his twenties, he returned, having a powerful conversion to [[Catholic Church|Catholicism]]
* [[Emily Coleman]]: American-born writer; lifelong compulsive diary keeper<ref>{{cite web |url=http://www.lib.udel.edu/ud/spec/findaids/clmn1.htm |title=University of Delaware: THE EMILY HOLMES COLEMAN PAPERS |access-date=24 March 2017}}</ref>
* [[Henry James Coleridge]]: son of [[John Taylor Coleridge]]; became a priest<ref>{{cite CE1913 |wstitle=Henry James Coleridge |first=John |last=Gerard |volume=4}}</ref>
* [[James Collinson]]: artist who briefly went back to Anglicanism in order to marry [[Christina Rossetti]]<ref>[https://www.nytimes.com/books/first/a/allitt-converts.html]: "She accepted him when he reverted to Anglicanism but canceled their wedding plans when he "went over to" Rome for a second time. Collinson's parents disowned him, and he was reduced to begging from his friends in the Pre-Raphaelite Brotherhood."</ref>
* [[Constantine the African]]: Tunisian doctor who converted from Islam and became a Benedictine monk<ref>{{cite web |url=http://www.uh.edu/engines/epi2097.htm |title=No. 2097 Constantine the African |access-date=24 March 2017}}</ref><ref>{{cite CE1913 |wstitle=Constantine Africanus |first=James Joseph |last=Walsh |volume=4}}</ref>
* [[Tim Conway]]: American comedian; converted to Catholicism because he said he liked the way the Church is structured
* [[Gary Cooper]]: American actor who converted to the Church late in life, saying, "that decision I made was the right one"<ref>Janis, Maria Cooper. Gary Cooper Off Camera: A Daughter Remembers. New York: Harry N. Abrams, Inc., 1999. {{ISBN|978-0-8109-4130-4}}</ref>
* [[Frederick Copleston]]: English historian of philosophy and Jesuit priest<ref>{{cite web |url=http://www.giffordlectures.org/Author.asp?AuthorID=43 |title=Frederick Charles Copleston |access-date=24 March 2017|date=18 August 2014 }}</ref>
* [[Gerty Cori]]: [[Czechs|Czech]]-American [[biochemist]] who became the third woman, and first American woman, to win a [[Nobel Prize]] in science, and the first woman to be awarded the [[Nobel Prize in Physiology or Medicine]]<ref>{{cite web|url=http://www.csupomona.edu/~nova/scientists/articles/cori.html |title=Gertrude "Gerty" Cori |access-date=2013-01-15 |url-status=dead |archive-url=https://web.archive.org/web/20121110101439/http://www.csupomona.edu/~nova/scientists/articles/cori.html |archive-date=10 November 2012 }}</ref><ref>{{cite web |url=https://www.jewishvirtuallibrary.org/jsource/biography/cori.html |title=Gerty Theresa Radnitz Cori |access-date=24 March 2017}}</ref>
* [[Richard Crashaw]]: English poet; son of a staunch [[Anti-Catholicism|anti-Catholic father]]<ref>{{cite CE1913 |first=Cornelius |last=Clifford |wstitle=Richard Crashaw |volume=4}}</ref>

===D===
* [[Lorenzo Da Ponte]]: Italian writer and poet; converted from Judaism on his father's remarriage<ref>{{cite web |url=http://www.columbia.edu/cu/alumni/Magazine/Legacies/Beeson/Beeson.html |title=Living Legacies |work=Columbia Magazine |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20170325202304/http://www.columbia.edu/cu/alumni/Magazine/Legacies/Beeson/Beeson.html |archive-date=25 March 2017}}</ref>
* [[Kim Dae-jung]]: [[President of South Korea]], Nobel Peace Prize recipient<ref name="Catholic News Agency">{{cite web |url=https://www.catholicnewsagency.com/news/16073/john-paul-iis-appeal-saved-future-korean-president-from-death-sentence |title=John Paul II's appeal saved future Korean president from death sentence |date=21 May 2009 |publisher=Catholic News Agency |access-date=25 June 2012}}</ref>
* [[Christopher Davenport]]: [[Recollects|Recollect]] friar whose efforts to show that the [[Thirty-Nine Articles]] could be interpreted more in accordance with Catholic teaching caused controversy among fellow Catholics<ref>{{cite CE1913 |wstitle=Christopher Davenport |first=Edwin Hubert |last=Burton |volume=4}}</ref>
* [[Dominique Dawes]]: Olympic gold medalist<ref>{{cite web |last1=Olivera |first1=Kate |title=Three-time Olympian shares her conversion story |url=https://www.catholicnewsagency.com/news/247259/three-time-olympian-shares-her-conversion-story |agency=Catholic News Agency |access-date=17 April 2021}}</ref>
* [[Christopher Dawson]]: British independent scholar, who wrote many books on cultural history and Christendom. Dawson has been called "the greatest English-speaking Catholic historian of the twentieth century". He converted to Catholicism in 1909<ref>{{Cite web|title=Modern Pioneers: Christopher Dawson |work=Christian History Magazine|url=https://christianhistoryinstitute.org/magazine/article/modern-pioneers-christopher-dawson|access-date=2021-02-02|publisher=Christian History Institute|language=en}}</ref>
* [[Dorothy Day]]: social activist and [[pacifist]]; founder of the [[Catholic Worker]] movement; was raised nominally Episcopalian<ref>{{cite web|url=http://www.catholicworker.com/ddaybio.htm |title=A Biography of Dorothy Day |publisher=Catholic Worker |access-date=24 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20050822083606/http://www.catholicworker.com/ddaybio.htm |archive-date=22 August 2005 }}</ref>
* [[David-Augustin de Brueys]]: French theologian<ref>{{cite CE1913 |first=Charles Albert |last=Dubray |wstitle=David-Augustine de Brueys |volume=3}}</ref>
* [[Regina Derieva]]: Russian poet<ref>{{cite news |url=https://www.theguardian.com/Archive/Article/0,4273,3865227,00.html |title=Catholics of Israel trapped by faith |first=David |last=Sharrock |date=14 May 1999 |newspaper=The Guardian |access-date=24 March 2017 }}</ref>
* [[Alfred Döblin]]: German expressionist novelist, best known for ''[[Berlin Alexanderplatz]]''<ref>{{cite web|url=http://www.kirjasto.sci.fi/adoblin.htm |title=Alfred Döblin |website=Books and Writers (kirjasto.sci.fi) |first=Petri |last=Liukkonen |publisher=[[Kuusankoski]] Public Library |location=Finland |archive-url=https://web.archive.org/web/20070608042637/http://kirjasto.sci.fi/adoblin.htm |archive-date=8 June 2007 |url-status=dead }}</ref>
* [[Catherine Doherty]]: Canadian pioneer of social justice; converted from Russian Christianity<ref>{{cite web |url=http://www.madonnahouse.org/publications/doherty/foml.htm |title=Fragments of My Life: A Memoir |website=madonnahouse.org |access-date=24 March 2017}}</ref>
* [[Audrey Donnithorne]]: English political economist and missionary, daughter of [[Vyvyan Donnithorne]], an [[History of Anglicanism in Sichuan|evangelical Anglican missionary to Sichuan]].<ref>{{cite news |author=<!--not stated--> |date=30 June 2020 |title=Audrey Donnithorne obituary |url=https://www.thetimes.com/world/asia/article/audrey-donnithorne-obituary-cf2swn5cn |work=[[The Times]] |location=London |access-date=3 June 2023}}</ref>
* [[Diana Dors]]: actress who was once called a "wayward hussy" by the [[Archbishop of Canterbury]], [[Geoffrey Fisher]]; in the 1970s she converted to Catholicism and had a Catholic funeral<ref>{{cite web |url=http://www.dianadors.co.uk/the_star_6_28.html |title=The Diana Dors Story -The Star 6 |website=dianadors.co.uk |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20170109020302/http://www.dianadors.co.uk/the_star_6_28.html |archive-date=9 January 2017 |url-status=dead}}</ref><ref>{{cite web |url=https://news.google.com/newspapers?id=loJTAAAAIBAJ&pg=5754,4795796&dq=diana-dors%20catholic&hl=en |title=Diana Dors loses fight with cancer |work=The Bulletin |date=6 May 1984 |page=A-7 |via=Google News |access-date=24 March 2017}}</ref>
* [[Ralph Downes]]: organist, teacher and designer of the [[Royal Festival Hall]] organ; long-time organist of the [[London Oratory]]{{citation needed|date=January 2025}}
* [[Ross Douthat]]: American conservative political analyst, blogger, author and opinion columnist at ''[[The New York Times]]''<ref>{{Cite web|date=2018-04-04|title=The Catholic Columnist: Q&A with Ross Douthat|url=https://www.americamagazine.org/faith/2018/04/04/catholic-columnist-qa-ross-douthat|access-date=2020-09-28|website=America Magazine|language=en}}</ref>
* [[David Paul Drach]]: French Talmudic scholar and librarian of the College of Propaganda in Rome<ref>{{cite Jewish Encyclopedia |first=Isidore |last=Singer |first2=Henry |last2=Hyvernat |url=http://www.jewishencyclopedia.com/articles/5300-drach-david-paul |title=Drach, David Paul}}</ref>
* [[Augusta Theodosia Drane]]: English writer and theologian, also known as Mother Francis Raphael, O.S.D<ref>{{cite CE1913 |first=Edwin Hubert |last=Burton |wstitle=Augusta Theodosia Drane |volume=5}}</ref>
* [[John Dryden]]: English poet, literary critic, and playwright<ref>{{cite web |url=http://cuapress.cua.edu/BOOKS/viewbook.cfm?Book=GAAF |title=Anne Barbeau Gardiner: Ancient Faith and Modern Freedom in John Dryden's The Hind and the Panther |publisher=The Catholic University of America Press |archive-url=https://web.archive.org/web/20070620164428/http://cuapress.cua.edu/BOOKS/viewbook.cfm?Book=GAAF |archive-date=20 June 2007 }}</ref>
* [[Avery Dulles]]: American [[Jesuit]] theologian, professor at [[Fordham University]];<ref>{{Cite web|url=http://www.crisismagazine.com/julaug2001/feature1.htm|archive-url=https://web.archive.org/web/20070814031814/http://www.crisismagazine.com/julaug2001/feature1.htm |url-status=dead |title=Avery Dulles's Long Road to Rome |work=Crisis Magazine|archive-date=14 August 2007}}</ref> son of former [[United States Secretary of State|Secretary of State]] [[John Foster Dulles]]
* [[Michael Dummett]]: British [[Analytic philosophy|Analytic philosopher]] who devised the [[Quota Borda system]]<ref>{{cite web |url=http://www.iep.utm.edu/d/dummett.htm#H1 |title=Dummett, Michael |work=Internet Encyclopedia of Philosophy |access-date=24 March 2017}}</ref>
* [[Michael Dunn (actor)|Michael Dunn]]: Dwarf, actor. Wanted to become a Catholic friar, but found that his small stature and frame made getting around the monastery impossible.
* [[Faye Dunaway]]: American actress<ref>{{cite magazine |url=http://www.esquire.com/features/what-ive-learned/ESQ0899-AUG_LEARNEDrev |last=Sager |first=Mike |title=What I've Learned: Faye Dunaway |magazine=[[Esquire (magazine)|Esquire]] |date=1999-08-01 |access-date=2009-02-19 |url-status=dead |archive-url=https://web.archive.org/web/20090304011534/http://www.esquire.com/features/what-ive-learned/ESQ0899-AUG_LEARNEDrev |archive-date=4 March 2009}}</ref>
* [[Joseph Dutton]]: veteran of the [[American Civil War]] who worked with [[Father Damien]]<ref>''[[Encyclopedia Americana]]'' (1969 edition), Volume 9-p.  501</ref>

===E===
* [[Martin Eisengrein]]: German theologian and polemicist<ref>{{cite CE1913 |wstitle=Martin Eisengrein |first=Michael |last=Ott |volume=5}}</ref>
* [[Ulf Ekman]]: Swedish charismatic pastor and founder of the [[Livets Ord]] congregation of the [[Word of Faith]] movement in [[Uppsala]], Sweden<ref>{{Cite web|url=https://www.charismanews.com/us/43058-ulf-ekman-converts-to-roman-catholicism|title=Ulf Ekman Converts to Roman Catholicism|first=Jennifer|last=LeClaire|website=Charisma News}}</ref>
* [[Black Elk]]: [[Oglala Lakota|Oglala]] medicine man<ref>[http://nieveroja.colostate.edu/issue4/black.htm Black Elk Speaks]: Black Elk saw in Catholicism a way for his people to practice religion within the confines of the United States laws, and "at the same time, he was able to fulfill the traditional role of a Lakota leader, poor himself, but ever generous to his people"</ref>
* [[Veit Erbermann]]: German theologian and controversialist<ref>{{cite CE1913 |last=Schroeder |first=Henry Joseph |wstitle=Veit Erbermann |volume=5}}</ref>
* [[William Everson (poet)|William Everson]]: Beat poet whose parents were [[Church of Christ, Scientist|Christian Scientists]]; took the name Brother Antoninus in the 18 years he spent as a [[Dominican Order|Dominican]]<ref>''Prodigious Thrust: A Memoir of Catholic Conversion'' by William Everson {{ISBN|1-57423-007-7}}</ref>
* [[Thomas Ewing]]: U.S. Senator from Ohio; served as Secretary of the Treasury and first Secretary of the Interior; foster brother of [[William Tecumseh Sherman]]<ref>{{cite CE1913 |last=Ewing |first=John |wstitle=Thomas Ewing |volume=5}}</ref>

===F===
* [[Frederick William Faber]]: English theologian and hymnwriter<ref>{{cite CE1913 |first=Henry Sebastian |last=Bowden |wstitle=Frederick William Faber |volume=5}}</ref>
* [[Lola Falana]]: dancer and actress who became a Catholic evangelist after converting; founded The Lambs of God Ministry<ref>{{Cite news |url=http://www.michronicleonline.com/index.php/contact/archives/185-chronicle-archives/2451 |archive-url=https://archive.today/20130629213140/http://www.michronicleonline.com/index.php/contact/archives/185-chronicle-archives/2451 |archive-date=29 June 2013 |newspaper=Michigan Chronicle |title=Changes |access-date=19 April 2013 |url-status=live }}</ref><ref>{{cite web |url=https://news.google.com/newspapers?id=XQJJAAAAIBAJ&pg=1447,2529944&dq=lola-falana%20catholic&hl=en |title=Record-Journal - Google News Archive Search |date=17 July 1999 |access-date=24 March 2017}}</ref>
* [[Fan Shouyi]] (or Luigi Fan): first known Chinese person to travel to Europe, return, and write an account of his travels. In 1717, he was ordained as a priest and would eventually be an interpreter for the Chinese emperor and as a missionary in his native China.
* [[Leonid Feodorov]]: [[exarch]] of the [[Russian Greek Catholic Church]]; [[Gulag]] survivor; beatified by [[Pope John Paul II]]<ref>{{cite book |page=[https://books.google.com/books?id=HnUnJ7X10BMC&pg=PA481 481] |title=The Forgotten: Catholics of the Soviet Empire from Lenin Through Stalin |first=Christopher Lawrence |last=Zugger |date=1 January 2001 |publisher=Syracuse University Press}}</ref><ref>{{cite book |page=[https://books.google.com/books?id=lmFEjKYlQfcC&pg=PA63 63] |title=The Catholic Church and Russia: Popes, Patriarchs, Tsars, and Commissars |first=Dennis J. |last=Dunn |date=1 January 2004 |publisher=Ashgate}}</ref>
* [[Ronald Firbank]]: British novelist{{citation needed|date=August 2022}}
* [[Sir Henry Fletcher, 3rd Baronet, of Hutton le Forest]]: converted and spent his last years in a monastery<ref>{{cite book |page=[https://archive.org/details/magnabritanniab01lysogoog/page/n450 116] |title=Magna Britannia;: Cumberland |first=Daniel |last=Lysons |date=1 January 1816 |publisher=T. Cadell and W. Davies in the Strand}}</ref><ref>{{cite web|url=http://www.hutton-in-the-forest.co.uk/family/henry_fletcher_3bt.html |title=Hutton-in-the-Forest, Official website – Sir Henry Fletcher 3rd Bt |access-date=19 June 2009 |url-status=dead |archive-url=https://web.archive.org/web/20090324171832/http://www.hutton-in-the-forest.co.uk/family/henry_fletcher_3bt.html |archive-date=24 March 2009 }}</ref>
* [[Kasper Franck]]: German theologian and controversialist<ref>{{cite CE1913 |wstitle=Kasper Franck |first=Joseph |last=Schroeder |volume=6}}</ref>
* [[Antonia Fraser]]: British historian, biographer and novelist; her parents converted when she was young<ref>{{cite news |url=https://www.theguardian.com/books/2002/aug/24/biography.academicexperts |title=The history woman |first=Nicholas |last=Wroe |date=23 August 2002 |newspaper=The Guardian |access-date=24 March 2017}}</ref>
* [[Johann Jakob Froberger]]: German composer
* [[André Frossard]]: French journalist and essayist<ref>{{cite web |url=https://www.independent.co.uk/news/people/obituariesandre-frossard-1571427.html |title=OBITUARIES:Andre Frossard |website=[[The Independent]] |date=4 February 1995 |access-date=24 March 2017}}</ref><ref>{{cite book |url=https://books.google.com/books?id=m6YaAAAAMAAJ&q=%22andre%20frossard%22%20atheism |title=I Have Met Him: God Exists |first=André |last=Frossard |date=1 January 1971 |publisher=Herder and Herder}}</ref>
* [[Lady Georgiana Fullerton]]: English novelist; converted in 1846 when she was in her 30s<ref>{{cite CE1913 |first=Kate Mary |last=Warren |wstitle=Lady Georgiana Charlotte Fullerton |volume=6 }}</ref>
* [[Allan Fung]]: American politician<ref>{{cite web |url=https://www.providencejournal.com/news/20170518/cranstons-first-family-mayor-fung-and-wife-barbara-ann-fenton-keep-competitive-edge-to-family-fun |title=Cranston's first family: Mayor Fung and wife Barbara Ann Fenton keep competitive edge to family fun |first=Kris |last=Craig |date=18 May 2017 | newspaper=Providence Journal |access-date=17 January 2021}}</ref>

===G===
* [[Ivan Gagarin]]: Russian Jesuit and writer of aristocratic origin<ref>{{cite CE1913 |wstitle=Ivan Sergejewitch Gagarin |first=Patrick J. |last=MacAuley |volume=6}}</ref>
* [[Maggie Gallagher]]: conservative activist; a founder of the [[National Organization for Marriage]]<ref>[http://www.salon.com/2012/02/08/the_making_of_gay_marriages_top_foe/singleton/ "The making of gay marriage's top foe" by Mark Oppenheimer; Salon] {{webarchive|url=https://web.archive.org/web/20130327035741/http://www.salon.com/2012/02/08/the_making_of_gay_marriages_top_foe/singleton/ |date=27 March 2013 }}: "I was an atheist from the youngest age. When I was 16, I became a [[Ayn Rand|Randian]]. Becoming a Catholic began as an intellectual thing."</ref>
* [[Mark Galli]]: American author, former editor of ''[[Christianity Today]]'', and former Evangelical Protestant minister<ref>{{Cite web|date=2020-09-10|title=Mark Galli, former Christianity Today editor and Trump critic, to be confirmed a Catholic|url=https://religionnews.com/2020/09/10/mark-galli-former-christianity-today-editor-and-trump-critic-to-be-confirmed-a-catholic/|access-date=2020-09-28|website=Religion News Service|language=en-US}}</ref>
* [[Peter Geach]]: English philosopher and professor of logic at the [[University of Leeds]]. Husband of [[Elizabeth Anscombe]]<ref>{{Cite web|date=2013-12-26|title=Peter Geach obituary|url=http://www.theguardian.com/education/2013/dec/26/peter-geach|access-date=2020-10-05|website=The Guardian|language=en}}</ref>
* [[Edmund Gennings]] and [[John Gennings]]: brothers; Edmund was a priest and martyr who converted at sixteen; his death lead to John's conversion; John restored the English province of Franciscan friars<ref>{{cite CE1913 |wstitle=Edmund and John Gennings |last=Cuthbert, Father |volume=6}}</ref>
* [[Elizabeth Fox-Genovese]]: historian; founder of the Institute of Women's Studies; wife of [[Eugene D. Genovese]]<ref>{{cite news |url=https://www.nytimes.com/2007/01/07/arts/07fox-genovese.html |title=Elizabeth Fox-Genovese, Historian, Is Dead at 65 |first=Margalit |last=Fox |date=7 January 2007 |newspaper=NYTimes |access-date=24 March 2017}}</ref>
* [[Eugene D. Genovese]]: historian; was once an atheist and [[Marxism|Marxist]]<ref>[https://web.archive.org/web/20150724073722/http://connection.ebscohost.com/c/interviews/9702141167/genoveses-find-god Interview in the National Review]: FMG:You've mentioned that you now believe in God. How recent is that? Eugene Genovese: It's in the last two years. You know, in ''The Southern Front'' I still spoke as an atheist; one reviewer said that I protest too much. When the book came off the press and I had to reread it, I started wrestling with the problem philosophically, and I lost.</ref>
* [[Princess Fathia of Egypt|Fathia Ghali]]: daughter of [[King Fuad I]] of Egypt and his Queen, [[Nazli Sabri]]; in 1950, both mother and daughter converted to Catholicism from Islam; this enraged [[King Farouk]], who forbade them from returning to Egypt; after his death, they asked President [[Anwar Sadat]] to restore their passports, which he did
* [[Vladimir Ghika]]: Romanian nobleman who became a Catholic monsignor and political dissident<ref>{{cite book |page=[https://books.google.com/books?id=gWAlBORp92MC&pg=PA187 187] |title=Irène Némirovsky: Her Life and Works |first=Jonathan M. |last=Weiss |date=1 January 2007 |publisher=Stanford University Press}}</ref><ref>{{cite web |url=http://www.catholicherald.co.uk/news/2013/03/28/pope-recognises-martyrs-who-died-at-the-hands-of-communist-and-fascist-regimes/ |title=Pope recognises martyrs who died at the hands of communist and fascist regimes - CatholicHerald.co.uk |date=28 March 2013 |access-date=24 March 2017}}</ref>
* [[Richard Gilmour]]: bishop of the [[Roman Catholic Diocese of Cleveland|Catholic Diocese of Cleveland]]<ref>{{cite web |url=http://ech.case.edu/ech-cgi/article.pl?id=GR1 |title=Encyclopedia of Cleveland History: GILMOUR, RICHARD |access-date=24 March 2017}}</ref>
* [[Newt Gingrich]]: American politician; [[Speaker of the United States House of Representatives]]<ref>Goodstein, Laurie. [https://www.nytimes.com/2011/12/17/us/politics/newt-gingrich-represents-new-political-era-for-catholics.html "Gingrich Represents New Political Era for Catholics"], ''The New York Times'', 17 December 2011.</ref>
* [[Dawn Eden Goldstein]]: rock journalist who was raised [[Reform Judaism|Reform Jewish]]; was agnostic, now a Catholic theologian and author<ref>{{cite web |url=http://www.sptimes.com/2008/02/26/Pasco/Author_tells_of_her_j.shtml |title=Pasco: Author tells of her journey to chastity |access-date=24 March 2017}}</ref><ref>{{cite web |url=http://www.msnbc.msn.com/id/23437024/ |archive-url=https://web.archive.org/web/20080304002831/http://www.msnbc.msn.com/id/23437024/ |url-status=dead |archive-date=4 March 2008 |title=The thrill of the chaste: In defense of sexless dating |date=2 March 2008 |access-date=24 March 2017}}</ref>
* [[Rumer Godden]]: English author of ''[[Black Narcissus]]'' and the [[1972 Whitbread Awards|1972 Whitbread Award winner]] ''[[The Diddakoi]]''; converted to Catholicism in 1968, which inspired the book ''In This House of Brede''<ref>{{cite book |url=https://books.google.com/books?id=Pc1UA3uhUlYC&pg=PA38 |title=A Historical Dictionary of British Women |first=Cathy |last=Hartley |date=2004 |publisher=Taylor & Francis |edition=2nd, revised |page=385 |isbn=978-0-2034-0390-7}}</ref>
*[[Jonathan Goodall]]: Anglican [[Bishop of Ebbsfleet]] from 2013 to 2021, converted in September 2021<ref>{{Cite web|last=CNA|title=Anglican bishop leaves the Church of England to enter the Catholic Church|url=https://www.catholicnewsagency.com/news/248877/anglican-bishop-leaves-the-church-of-england-to-enter-the-catholic-church|access-date=2021-10-15|website=Catholic News Agency|language=en}}</ref>
* [[John Gother]]: English Catholic convert, priest and controversialist<ref>{{cite CE1913 |wstitle=John Gother |first=Charles Francis Wemyss |last=Brown |volume=6}}</ref>
* [[John Willem Gran]]: former [[Roman Catholic Diocese of Oslo|Bishop of Oslo]]; had been an atheist working in the film industry<ref>{{cite news |title=Ex-film Director Is Consecrated |url=https://news.google.com/newspapers?id=7WdkAAAAIBAJ&pg=3287,8223880&dq=john-willem-gran&hl=en |work=[[The Calgary Herald]] |date=30 March 1963 |access-date=25 June 2011}}</ref><ref>''From Atheist to Monk'' by John Willem Gran (Cistercian Publications, 2004)</ref>
* [[Jennifer Granholm]]: [[United States Secretary of Energy]] and 47th [[Governor of Michigan]]<ref>{{cite news |last=Rice |first=Lewis |title=Catch a Rising Star |url=https://hls.harvard.edu/today/catch-rising-star/ |work=Harvard Law Bulletin |date=24 September 2002}}</ref>
* [[Graham Greene]]: British writer whose Catholicism influenced novels like ''[[The Power and the Glory]]'',<ref>{{cite news |url=http://www.thenation.com/article/not-easy-being-greene-graham-greenes-letters |title=Not Easy Being Greene: Graham Greene's Letters |newspaper=The Nation |access-date=24 March 2017}}</ref> although in later life he once referred to himself as a "Catholic atheist"<ref>"I don't like conventional religious piety. I'm more at ease with the Catholicism of Catholic countries. I've always found it difficult to believe in God. I suppose I'd now call myself a Catholic atheist." Graham Greene, interviewed by VS Pritchett, ''Saturday Review'': Graham Greene into the light', ''The Times'', 18 March 1978; p. 6; Issue 60260; col A.</ref>
* [[Wilton Daniel Gregory]]: American [[Roman Catholic Archdiocese of Washington|Archbishop of Washington]], 2019–present<ref name=people>{{Cite news |date=2004-12-16 |work=The Georgia Bulletin |title=New Archbishop Will "Come To Know The People" |url=http://www.georgiabulletin.org/local/2004/12/16/people |last=Castranio |first=Mary Anne |access-date=22 February 2010 |archive-url=https://web.archive.org/web/20110721050736/http://www.georgiabulletin.org/local/2004/12/16/people/ |archive-date=21 July 2011 |url-status=dead}}</ref>
* [[Moritz Gudenus]]: German priest<ref>{{cite CE1913 |wstitle=Moritz Gudenus |first=Nicholas Aloysius |last=Weber |volume=7}}</ref>
* [[Alec Guinness]]: British actor,<ref>{{cite news |url=https://www.telegraph.co.uk/culture/film/3604065/Sorry-Alec-I-couldnt-let-you-off-the-hook.html |title=Sorry Alec, I couldn't let you off the hook |first=David |last=Thomas |newspaper=The Daily Telegraph|access-date=24 March 2017}}</ref> after whom the [[Catholic Association of Performing Arts]] named an award<ref>{{cite web |url=http://caapa.org.uk/diary/index.html/ |title=CAAPA site |access-date=24 March 2017 |archive-date=21 April 2012 |archive-url=https://web.archive.org/web/20120421033316/http://caapa.org.uk/diary/index.html |url-status=dead }}</ref>
* [[Ruffa Gutierrez]]: [[Filipino people|Filipina]] actress, model and former beauty queen; converted from Christianity to [[Islam]] and back to Christianity<ref>{{cite web |url=http://pep.ph/news/13286/Ruffa-Gutierrez-reaffirms-her-Christian-faith |title=Ruffa Gutierrez reaffirms her Christian faith |first=Ambet |last=Nabus |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20171028200831/http://www.pep.ph/news/13286/ruffa-gutierrez-reaffirms-her-christian-faith |archive-date=28 October 2017 |url-status=dead }}</ref><ref>{{cite web|url=http://www.mb.com.ph/ruffa-gutierrez-on-men-and-calculated-love/ |title=Ruffa Gutierrez on men and "calculated love" {{pipe}} Manila Bulletin {{pipe}} Latest Breaking News {{pipe}} News Philippines |website=[[Manila Bulletin]] |access-date=2014-08-06 |url-status=dead |archive-url=https://web.archive.org/web/20140515045255/http://www.mb.com.ph/ruffa-gutierrez-on-men-and-calculated-love/ |archive-date=15 May 2014 }} "He has to be God-fearing. I've been with someone of different religion and while I accept all religions, it would be nice if me and my man could go to Church together," she said.</ref><ref>{{cite web|url=http://www.yowmomma.com/ruffa-gutierrez/ruffa-gutierrez-visited-baclayon-church-one-of-the-oldest-churches-in-the-philippines-built-in-the-1500s-it-was-devastated-by-the-7-2-magnitude-earthquake-that-hit-bohol-last-oct-15-2013-heart/ |title=Ruffa Gutierrez: Visited Baclayon Church, one of the oldest churches in the Philippines built in the 1500's. It was devastated by the 7.2 magnitude earthquake that hit Bohol last Oct. 15, 2013. Heartbreaking... {{pipe}} Celebrity Instagram - YowMommaCelebrity Instagram – YowMomma |access-date=2014-08-06 |url-status=dead |archive-url=https://web.archive.org/web/20150109225228/http://www.yowmomma.com/ruffa-gutierrez/ruffa-gutierrez-visited-baclayon-church-one-of-the-oldest-churches-in-the-philippines-built-in-the-1500s-it-was-devastated-by-the-7-2-magnitude-earthquake-that-hit-bohol-last-oct-15-2013-heart/ |archive-date=9 January 2015 }} Ruffa Gutierrez: Visited Baclayon Church</ref>

===H===
* [[Cyrus Habib]]: U.S. politician turned Jesuit<ref>{{cite web |url=https://www.nytimes.com/2020/04/11/opinion/sunday/cyrus-habib-jesuit.html |title=A Politician Takes a Sledgehammer to His Own Ego |website=[[The New York Times]] |access-date=24 April 2018}}</ref>
* [[Fabrice Hadjadj]]: French writer and philosopher<ref>{{Cite web |title=HADJADJ Fabrice {{!}} Editions Corlevour |url=https://editions-corlevour.com/project/hadjadj-fabrice/#:~:text=Apprenant%20la%20maladie%20(finalement%20b%C3%A9nigne,Pierre%20de%20Solesmes%20en%201998. |access-date=2024-06-10 |website=editions-corlevour.com}}</ref>
* [[Theodor Haecker]]: German writer, translator and cultural critic<ref>{{cite web |url=https://archive.org/stream/journalinthenigh009030mbp/journalinthenigh009030mbp_djvu.txt |title=Full text of "Journal in the Night" |access-date=24 March 2017}}</ref>
* [[Kimberly Hahn]]: former Presbyterian; theologian, apologist and author of many books<ref>{{Cite book|isbn = 0898704782|title = Rome Sweet Home: Our Journey to Catholicism|last1 = Hahn|first1 = Scott|last2 = Hahn|first2 = Kimberly|year = 1993| publisher=Ignatius Press |url-access = registration|url = https://archive.org/details/romesweethomeour00hahn}}</ref>
* [[Scott Hahn]]: former Presbyterian minister; theologian, scripture scholar and author of many books<ref>{{cite book |title=Rome Sweet Home: Our Journey to Catholicism |first1=Scott |last1=Hahn |first2=Kimberly |last2=Hahn |date=1 August 1993 |publisher=Ignatius Press |isbn=0898704782 |url-access=registration |url=https://archive.org/details/romesweethomeour00hahn }}</ref>
* [[Jeffrey Hamm]]: British fascist leader; converted by the renegade Catholic priest Fr. Clement Russell; succeeded [[Oswald Mosley]] as head of the [[British Union of Fascists]]
* [[Thomas Morton Harper]]: Jesuit priest, philosopher, theologian and preacher<ref>{{cite CE1913 |wstitle=Thomas Morton Harper |first=Michael |last=Maher |volume=7}}</ref>
* [[Chris Haw]]: theologian and author of numerous books, including ''[[From Willow Creek to Sacred Heart]]'', which detailed his conversion away from evangelical Protestantism<ref>https://www.amazon.com/From-Willow-Creek-Sacred-Heart/dp/1594712921: "From Willow Creek to Sacred Heart". Pub. October 2012.</ref>
* [[Anna Haycraft]]: raised in [[Auguste Comte]]'s atheistic "church of humanity", but became a conservative Catholic in adulthood<ref>[https://web.archive.org/web/20060712114919/http://www.telegraph.co.uk/news/main.jhtml?view=DETAILS&grid=&targetRule=10&xml=%2Fnews%2F2005%2F03%2F10%2Fdb1001.xml Daily Telegraph]  "She reacted strongly against her parents' beliefs and became a Catholic at 19, because she 'no longer found it possible to disbelieve in God.'" (pg 2)</ref>
* [[Bill Hayden]]: Australian politician and Governor-General of Australia, converted from atheism at age 85 after retirement from public office.<ref>{{cite news |last1=Silva |first1=Kristan |title=Bill Hayden, former Labor leader, turns to God despite atheist past |url=http://www.abc.net.au/news/2018-09-19/bill-hayden-turns-to-god-at-85-baptism-brisbane/10280724 |access-date=3 April 2021 |work=ABC News |publisher=Australian Broadcasting Corporation |date=19 September 2018}}</ref>
* [[Carlton J. H. Hayes]]: American ambassador to Spain; helped found the American Catholic Historical Association; co-chair of the [[National Conference for Community and Justice|National Conference of Christians and Jews]]<ref>{{cite news |url=https://www.nytimes.com/1942/05/01/archives/honored-by-christians-and-jews.html |title=HONORED BY CHRISTIANS AND JEWS |date=1 May 1942 |newspaper=NYTimes |access-date=24 March 2017}}</ref><ref>{{cite web |url=http://www.kirkcenter.org/index.php/bookman/article/the-story-of-carlton-hayes/ |title=The University Bookman: The Story of Carlton Hayes |access-date=24 March 2017}}</ref>
* [[Susan Hayward]]: [[Academy Award]]-winning American actress who helped found a church<ref>{{cite web |url=https://news.google.com/newspapers?id=A-dVAAAAIBAJ&pg=4586,1142925&dq=susan%20hayward%20catholic&hl=en |title=Eugene Register-Guard - Google News Archive Search |access-date=24 March 2017}}</ref><ref>{{cite web |url=https://news.google.com/newspapers?id=XcVOAAAAIBAJ&pg=5468,2993527&dq=susan%20hayward%20catholic&hl=en |title=Ocala Star-Banner - Google News Archive Search |access-date=24 March 2017}}</ref>
* [[Isaac Hecker]]: founder of the [[Paulist Fathers]]<ref>{{cite EB1911 |first=James Joseph |last=Fox |wstitle=Hecker, Isaac Thomas |volume=13 |page=194}}</ref>
* [[Elisabeth Hesselblad]]: raised Lutheran; after her conversion, became a nun; beatified by [[Pope John Paul II]] on 9 April 2000; recognized by [[Yad Vashem]] in 2004 as one of the [[Righteous Among the Nations]] for her work in helping [[Jews]] during [[World War II]]<ref>{{cite web |url=https://www.vatican.va/news_services/liturgy/saints/ns_lit_doc_20000409_beat-Hesselblat_en.html |title=Maria Elisabetta Hesselblad |access-date=24 March 2017}}</ref><ref>[https://docs.google.com/viewer?a=v&q=cache:DfFn0_pepScJ:www.swedishcouncil.org/assets/statuesmonumentsplaques.pdf+%22Elisabeth+Hesselblad%22+holocaust&hl=en&gl=us&pid=bl&srcid=ADGEESgIIEj7F6vnWqpFsAs-C45YvtGvNu1FLQnlDouRk3cSFJbFBULo4Ogd3x4GVIhnn7akxmFf1fcaDYzR0MHhNwzlRvAi-CdKWstX2QQvQQPvgBwXLdEQtuZxMC_gBg1hF8GxYe3N&sig=AHIEtbQVOsCpHuE2MH1IcJlvuldK-QdIlA Swedish Council of America]</ref>
* [[Dietrich von Hildebrand]]: German theologian<ref>{{Cite web|url=http://www.firstthings.com/article/2007/01/the-witness-of-dietrich-von-hildebrand-38|archive-url=https://web.archive.org/web/20130409212744/http://www.firstthings.com/article/2007/01/the-witness-of-dietrich-von-hildebrand-38 |url-status=dead |title=First Things|archive-date=9 April 2013}}</ref><ref>{{cite web |url=http://www.newoxfordreview.org/briefly.jsp?did=0601-briefly |title=New Oxford Review |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20170325113127/http://www.newoxfordreview.org/briefly.jsp?did=0601-briefly |archive-date=25 March 2017 |url-status=dead }}</ref>
* [[H.H. Holmes]]: Chicago serial killer portrayed in Erik Larson's ''[[The Devil in the White City]]''; allegedly converted in Philadelphia's [[Moyamensing Prison]], about a week before he was executed in 1896<ref>[https://newspapers.library.in.gov/cgi-bin/indiana?a=d&d=IJ18960508.1.5&srpos=9&e=-------en-20--1--txt-txIN-mudgett-----#]''Indianapolis Journal'', 8 May 1896.</ref>
* [[Walter Hooper]]: trustee and literary advisor of the estate of [[C. S. Lewis]]<ref>[http://web.mac.com/johnmallon/Site/Walter_Hooper.html Crisis Magazine] {{webarchive|url=https://web.archive.org/web/20110103170006/http://web.mac.com/johnmallon/Site/Walter_Hooper.html |date=3 January 2011 }}: "A Conversation with Walter Hooper". July–August 1994.</ref>
* [[James Hope-Scott]]: English lawyer connected to the [[Oxford Movement]]<ref>{{cite CE1913 |wstitle=James Robert Hope-Scott |first=Charles Thomas |last=Boothman |volume=7}}</ref>
* [[Gerard Manley Hopkins]]: English poet and Catholic priest<ref>{{citation |url=http://www.bbc.co.uk/poetryseason/poets/gerard_manley_hopkins.shtml |title=BBC - Poetry Season - Poets - Gerard Manley Hopkins |publisher=BBC |access-date=24 March 2017}}</ref>
* [[Deal Hudson]]: Philosopher, publisher, political activist; converted from Southern Baptist to Catholicism at age 34.<ref>Deal W. Hudson, An American Conversion; One Man's Search for Beauty and Truth in a Time of Crisis, Crossroads, 2003</ref>
* [[Francis Hsu]] (Chen-Ping): third [[Roman Catholic Diocese of Hong Kong|bishop of Hong Kong]], and the first Chinese one; a convert from Methodism
* [[Arcadio Huang]]: Chinese Christian convert, and brought to Paris by the Missions étrangères. He took a pioneering role in the teaching of the Chinese language in France around 1715.
* [[Allen Hunt]]: American radio personality; former Methodist pastor<ref>[http://www.georgiabulletin.org/local/2008/03/27/hunt/ The Georgia Bulletin] {{Webarchive|url=https://web.archive.org/web/20080622171332/http://www.georgiabulletin.org/local/2008/03/27/hunt/ |date=22 June 2008 }}: "15-Year Journey Led Allen Hunt To Become Catholic". 27 March 2008.</ref>
* [[E. Howard Hunt]]: American spy and novelist<ref>William F. Buckley, Jr., [http://findarticles.com/p/articles/mi_m1282/is_3_59/ai_n19312016 "Howard Hunt, R.I.P"] {{webarchive|url=https://web.archive.org/web/20080306100653/http://findarticles.com/p/articles/mi_m1282/is_3_59/ai_n19312016 |date=6 March 2008 }}
National Review, 5 March 2007: "Howard Hunt was my boss, and our friendship was such that soon after I quit the agency and returned to Connecticut, he and his wife advised me that they were joining the Catholic Church and asked if I would serve as godfather to their two daughters, which assignment I gladly accepted, continuing in close touch with them."</ref>
* [[Reinhard Hütter]]: American theologian<ref name="christiancentury.org">{{cite web |url=http://www.christiancentury.org/article.lasso?id=2290 |title=The Christian Century |access-date=24 March 2017}}</ref>

===I===
* [[Laura Ingraham]]: American broadcaster and political commentator
* [[Princess Irene of the Netherlands]]: her conversion, related to her marrying a [[Carlism|Carlist]], became something of a national issue<ref>{{Cite web |url=https://news.google.com/newspapers?id=KGkyAAAAIBAJ&sjid=H7cFAAAAIBAJ&pg=948,1566723&dq=princess+irene&hl=en |title="Princess Irene Keeps Dutch Guessing About Engagement". The Palm Beach Post. 8 February 1964. Retrieved 10 March 2012 |access-date=21 September 2016 |archive-date=25 September 2015 |archive-url=https://web.archive.org/web/20150925231437/https://news.google.com/newspapers?id=KGkyAAAAIBAJ&sjid=H7cFAAAAIBAJ&pg=948,1566723&dq=princess+irene&hl=en |url-status=dead }}</ref><ref>{{cite web |url=https://news.google.com/newspapers?id=A2ZSAAAAIBAJ&pg=4484,528470&dq=princess%20irene&hl=en |title=St. Petersburg Times - Google News Archive Search |access-date=24 March 2017}}</ref>
* [[Vyacheslav Ivanov (poet)|Vyacheslav Ivanov]]: poet and playwright associated with [[Russian symbolism]]; received into the [[Catholic Church]] in 1926<ref>[https://docs.google.com/viewer?a=v&q=cache:6bRL09i9JpgJ:www.v-ivanov.it/wp-content/uploads/2010/12/deshartes_ivanov_1954_text.pdf+%22Vyacheslav+Ivanov%22+catholic&hl=en&gl=us&pid=bl&srcid=ADGEESj5V7vEiluefMXM5Kd6v0TDNjjibIQ41VZsNR9ykK98IN4AHNYhZRW7Sn2pw3VQ4TVrQ0AYvhrqb7P-EkRlyOPuArzaCX9kxvx-qYn_QCMaifAaDVX5cMnP1V_15aAAKy_xLqJ2&sig=AHIEtbRsIbD_aTdCL0ZeQyqLKz0-b-TKGQ Extract from Oxford Slavonic Papers Volume V, pg 48]</ref><ref>{{cite book |page=[https://archive.org/details/baudelaireinruss00wann/page/122 122] |title=Baudelaire in Russia |first=Adrian |last=Wanner |date=1 January 1996 |publisher=University Press of Florida}}</ref>
* [[Levi Silliman Ives]]: [[Episcopal Church of the USA]] Bishop of North Carolina<ref>{{cite book |url=https://books.google.com/books?id=w2yGtgAACAAJ |title=Levi Silliman Ives: Priest, Bishop, Tractarian, and Roman Catholic Convert |first=Michael Taylor |last=Malone |year=1970 }}</ref><ref>{{Cite magazine |url=http://spectator.org/archives/2010/09/27/americas-forgotten-newman |title=America's Forgotten Newman? |first=Joseph P. |last=Duggan |date=27 September 2010 |archive-url=https://web.archive.org/web/20130218180313/http://spectator.org/archives/2010/09/27/americas-forgotten-newman |url-status=dead |magazine=[[The American Spectator]] |archive-date=18 February 2013}}</ref>

===J===
* [[James II of England]]: King of England and Ireland as James II, and King of Scotland as James VII, from 6 February 1685 until he was deposed in the [[Glorious Revolution|Revolution of 1688]]. He was the last Catholic monarch of England, Scotland and Ireland; his reign is now remembered primarily for struggles over religious tolerance. He converted from Anglicanism to Catholicism in 1668 or 1669<ref>{{Cite book|last=Callow|first=John|title=The Making of King James II: The Formative Years of a King|publisher=Sutton Publishing|year=2000|isbn=0-7509-2398-9|location=Stroud, Gloucestershire|pages=143–144}}</ref>
* [[Bobby Jindal]]: American politician who served as the 55th [[Governor of Louisiana]] from 2008 to 2016; converted in his teens<ref>[https://www.usnews.com/news/campaign-2008/articles/2008/05/22/10-things-you-didnt-know-about-bobby-jindal US News & World Report]</ref>
* [[Gwen John]]: artist; [[Auguste Rodin]]'s lover; after the relationship she had a religious conversion and did portraits of nuns<ref>{{cite news |url=http://news.bbc.co.uk/2/hi/7489436.stm |title=BBC NEWS - UK - Wales - 'God's little artist' Gwen John |access-date=24 March 2017|date=6 July 2008 }}</ref>
* [[Abby Johnson (activist)|Abby Johnson]]: former Planned Parenthood clinic director; converted to Catholicism in 2011, two years after her anti-abortion conversion in 2009<ref>{{cite web |url=http://www.catholic-sf.org/ns.php?newsid=22&id=58048 |title=Catholic San Francisco |access-date=24 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20170325202112/http://www.catholic-sf.org/ns.php?newsid=22&id=58048 |archive-date=25 March 2017}}</ref><ref>{{cite web |url=https://www.catholicnewsagency.com/news/21730/abby-johnson-reveals-details-of-pro-life-turnaround-and-catholic-conversion |title=Abby Johnson reveals details of pro-life turnaround and Catholic conversion |access-date=24 March 2017}}</ref>
* [[Bobby Jones (golfer)|Bobby Jones]]: Golf pioneer. Converted on his deathbed in 1971
* [[James Earl Jones]]: American actor who converted during his service in the U.S. Army<ref>{{Cite web |title=James Earl Jones At Bat {{!}} The Stacks Reader |url=http://www.thestacksreader.com/james-earl-jones-at-bat/ |access-date=2022-05-04 |language=en-US}}</ref>
* [[Walter B. Jones]]: U.S. politician; Member of the United States House of Representatives<ref>[http://projects.newsobserver.com/dome/profiles/walter_b_jones_jr News Observer] {{webarchive|url=https://web.archive.org/web/20070509093023/http://projects.newsobserver.com/dome/profiles/walter_b_jones_jr |date=9 May 2007 }}</ref>
* [[Nirmala Joshi]]: Superior General of the [[Missionaries of Charity]], 1997–2009<ref>{{cite web |url=http://www.cnn.com/WORLD/9703/13/india.teresa/ |title=CNN - Indian-born nun to succeed Mother Teresa - Mar. 13, 1997 |website=[[CNN]] |access-date=24 March 2017}}</ref>
* [[Johannes Jørgensen]]: Danish writer, known for his biographies of Catholic saints<ref>{{cite book |chapter-url=http://www.lunduniversity.lu.se/o.o.i.s?id=24732&postid=1275463 |archive-url=https://archive.today/20130706111712/http://www.lunduniversity.lu.se/o.o.i.s?id=24732&postid=1275463 |archive-date=6 July 2013 |chapter=Johannes Jørgensen and Catholic Conversion in Scandinavia |title=Giovanni Jørgensen e il francescanesimo: atti del XXXV Convegno internazionale in occasione del cinquantesimo anniversario della morte, 1956-2006, Assisi, 11-13 ottobre 2007 |date=1 January 2008 |access-date=24 March 2017 }}</ref><ref>{{cite book |page=[https://books.google.com/books?id=oCj6gVt5qyUC&pg=PA590 590] |title=The Symbolist Movement in the Literature of European Languages |editor1-first=Anna A. |editor1-last=Balakian |editor2-first=Anna Elizabeth |editor2-last=Balakian |date=1 January 1984 |publisher=John Benjamins Publishing}}</ref>
*[[Ernst Jünger]]: decorated German soldier, author, and [[Entomology|entomologist]] who became publicly known for his World War I memoir ''[[Storm of Steel]]''. Converted shortly before his death at the age of 102<ref>{{Cite web|title=Standing Against Tyranny {{!}} Russell A. Berman|url=https://www.firstthings.com/article/2020/11/standing-against-tyranny|access-date=2020-12-09|website=First Things|language=en}}</ref>

===K===
* [[Nicholas Kao Se Tseien]]: world's oldest priest<ref>{{Cite web|url=http://www.thestandard.com.hk/news_detail.asp?we_cat=4&art_id=3031&sid=4908247&con_type=1&d_str=20051008|archive-url=https://web.archive.org/web/20120716185959/http://www.thestandard.com.hk/news_detail.asp?we_cat=4&art_id=3031&sid=4908247&con_type=1&d_str=20051008|url-status=dead|title=The Standard|archive-date=16 July 2012}}</ref>
* [[Katharine, Duchess of Kent]]: first member of the British royal family to convert to Catholicism for more than 300 years<ref>{{cite news |url=http://news.bbc.co.uk/onthisday/hi/dates/stories/january/14/newsid_2530000/2530695.stm |title=BBC ON THIS DAY - 14 - 1994: Duchess of Kent joins Catholic church |access-date=24 March 2017|date=14 January 1994 }}</ref>
* [[Joyce Kilmer]]: American journalist, poet, literary critic, lecturer and editor<ref>{{cite web |url=http://www.poetryfoundation.org/bio/joyce-kilmer |title=Joyce Kilmer |date=24 March 2017 |access-date=24 March 2017}}</ref><ref>{{cite web |url=http://www3.nd.edu/~wcawley/corson/cors023.htm |title=A Cave of Candles 23 |access-date=24 March 2017}}</ref>
* [[Yuna Kim]]: South Korean figure skater and Olympic gold medalist<ref>{{cite web |url=http://english.chosun.com/site/data/html_dir/2010/04/06/2010040600910.html |title=Kim Yu-na Named Goodwill Ambassador of Catholic Foundation |access-date=24 March 2017}}</ref>
* [[Russell Kirk]]: American historian, moralist and figure in [[Conservatism in the United States|US Conservatism]]<ref>{{cite web |url=http://www.hillsdale.edu/academics/majors/amstudies/kirk.asp |title=404 Not Found - Hillsdale College |access-date=24 March 2017}}</ref>
* [[Sister Gregory Kirkus]]: English Catholic nun, educator, historian and archivist<ref>{{cite web |url=http://www.bbc.co.uk/radio4/news/lastword_21sept2007.shtml |title=BBC - Radio 4 - Last Word |last=BBC |access-date=24 March 2017}}</ref>
* [[Harm Klueting]]: priest and historian; had been Lutheran and had two children<ref>{{cite web |url=http://www.nydailynews.com/news/world/pope-married-father-ordained-catholic-priest-church-germany-article-1.135745 |title=Pope allows married father of two to be ordained Catholic priest |website=[[New York Daily News]] |access-date=24 March 2017}}</ref>
* [[Michael Knowles (political commentator)|Michael Knowles]]: American Catholic conservative talk show host and commentator at the daily wire 
*[[Ronald Knox]]: English Catholic priest, theologian, author, and radio broadcaster. Ordained an Anglican priest in 1912, Knox converted to Catholicism in 1917. He is known for his translation of the bible, the [[Knox Bible]], published in 1955<ref>{{Cite web|date=2013-02-16|title=Invisible Ink: No 160 - Ronald Knox|url=https://www.independent.co.uk/arts-entertainment/books/features/invisible-ink-no-160-ronald-knox-8497999.html|access-date=2021-10-21|website=The Independent|language=en}}</ref> 
* [[Dean Koontz]]: American novelist known for thrillers and suspense; converted in college<ref>{{Cite web|url=http://www.ncregister.com/site/article/2013|archive-url=https://web.archive.org/web/20100117060951/http://www.ncregister.com/site/article/2013 |url-status=dead |title=Interview at the National Catholic Register|archive-date=17 January 2010}}</ref>
* [[Knud Karl Krogh-Tonning]]: Norwegian; had been a Lutheran professor of theology<ref>{{cite web |url=https://archive.org/stream/catholicworld95pauluoft#page/776/mode/2up |title=The Catholic world |access-date=24 March 2017}}</ref>
* [[Albert Küchler]]: Danish painter who became a Franciscan friar<ref>{{cite book |pages=[https://books.google.com/books?id=25hHAQAAIAAJ&dq=%22Albert+K%C3%BCchler%22&pg=PA110 109]–110 |title=The Story of My Life |first=Hans Christian |last=Andersen |date=1 January 1871 |publisher=Hurd and Houghton}}</ref>
* [[Lawrence Kudlow]]: [[CNBC]] host and business columnist<ref>{{cite news |url=https://www.nytimes.com/1994/04/03/business/a-wall-st-star-s-agonizing-confession.html |title=A Wall St. Star's Agonizing Confession |first=Sylvia Nasar With Alison Leigh |last=Cowan |date=3 April 1994 |newspaper=NYTimes |access-date=24 March 2017}}</ref><ref>{{Cite news|url=https://www.washingtonpost.com/local/quite-a-shock-the-priest-was-a-dc-luminary-then-he-had-a-disturbing-fall-from-grace/2019/01/14/99b48700-1453-11e9-b6ad-9cfd62dbb0a8_story.html|title='Quite a shock': The priest was a D.C. luminary. Then he had a disturbing fall from grace.|last=Heim|first=Joe|newspaper=The Washington Post|language=en|access-date=2019-10-29}}</ref>
* [[Sigiswald Kuijken]]: Belgian violinist, violist and conductor<ref>{{in lang|nl}} [http://nieuws.kuleuven.be/node/2447 Interview with Sigiswald Kuijken], Campuskrant Jaargang 18 nr. 06 (17 January 2007)</ref>
* [[William Kurelek]]: Canadian painter<ref>{{cite web |url=http://aggv.ca/exhibitions/william-kurelek |title=William Kurelek - Art Gallery of Greater Victoria |access-date=24 March 2017}}</ref>
* [[Stephan Kuttner]]: expert in [[Canon law (Catholic Church)|canon law]]<ref>{{cite news |url=https://www.nytimes.com/1996/08/16/us/stephan-kuttner-89-a-scholar-who-traced-the-origin-of-law.html |title=Stephan Kuttner, 89, a Scholar Who Traced the Origin of Law |first=Wolfgang |last=Saxon |date=16 August 1996 |newspaper=NYTimes |access-date=24 March 2017}}</ref>
* [[Demetrios Kydones]]: Byzantine theologian, writer and statesman<ref>{{cite web |url=http://bekkos.wordpress.com/martin-jugie-the-palamite-controversy/ |title=Martin Jugie : The Palamite Controversy |date=13 June 2009 |access-date=24 March 2017}}</ref>

===L===
* [[Shia LaBeouf]]: American actor, performance artist, and filmmaker; converted following an extended period preparing for a role playing [[Padre Pio]]<ref>{{Cite magazine |last=Bouza |first=Kat |date=2022-08-26 |title=Shia LaBeouf Says He Converted to Catholicism After Portraying Mystic Friar in Upcoming Film |url=https://www.rollingstone.com/tv-movies/tv-movie-news/shia-labeouf-converts-to-catholicism-padre-pio-1234582138/ |access-date=2022-09-01 |magazine=Rolling Stone |language=en-US}}</ref>
* [[Charlie Landsborough]]: singer songwriter
* [[Karl Landsteiner]]: Austrian [[biologist]] and [[physician]]; received the 1930 [[Nobel Prize in Physiology or Medicine]]; converted from [[Judaism]] to [[Roman Catholicism|Catholicism]] in 1890<ref name="Anna L. Staudacher 2009, p. 349">Anna L. Staudacher: ''"... meldet den Austritt aus dem mosaischen Glauben". 18000 Austritte aus dem Judentum in Wien, 1868–1914: Namen – Quellen – Daten''. Peter Lang, Frankfurt, 2009, {{ISBN|978-3-631-55832-4}}, p. 349</ref>
* [[Joseph Lane]]: Territorial Governor of Oregon; first U.S. Senator from Oregon; pro-slavery Democratic candidate for US Vice President in 1860; openly sympathetic to the Confederacy during the Civil War; studied Catholic doctrine and converted with his family in 1867<ref>{{cite web |last1=Kelly |first1=Sister M. Margaret Jean |title=The Career of Joseph Lane, Frontier Politician |url=http://www.upa.pdx.edu/IMS/currentprojects/TAHv3/Content/Not_Posted/The%20Career%20of%20Joseph%20Lane%20Frontier%20Politician.pdf |url-status=dead |archive-url=https://web.archive.org/web/20150210213400/http://www.upa.pdx.edu/IMS/currentprojects/TAHv3/Content/Not_Posted/The%20Career%20of%20Joseph%20Lane%20Frontier%20Politician.pdf |archive-date=10 February 2015}}</ref>
*[[John Lawe]], [[Wisconsin Territory]] fur trader and land magnate. Lawe, who was of Jewish background, was baptised a Protestant, and had served as [[vestryman]] and treasurer of Wisconsin's first [[Episcopalianism|Episcopalian]] church, was reported to have made a [[deathbed conversion]] to Catholicism, and was buried in a Catholic cemetery next to his wife Thérèse. Local speculation was that the purpose of his conversion was to allow this burial.<ref>Kay, Jeanne. "John Lawe: Green Bay Trader" ''[[Wisconsin Magazine of History]]'' Vol. 64 No. 1 (Autumn 1980). Madison: State Historical Society of Wisconsin, 1981; pp. 4, 26-27</ref>
* [[Halldór Laxness]]: Icelandic writer; received the 1955 [[Nobel Prize in Literature]]; converted in 1923;<ref name="Nobel Prize bio">{{cite web |url=http://nobelprize.org/nobel_prizes/literature/laureates/1955/laxness-bio.html |title=Halldór Laxness - Biographical |access-date=24 March 2017}}</ref> left the Church, but returned at the end of his life<ref name="Books and Writers">{{cite web|url=http://www.kirjasto.sci.fi/laxness.htm |title=Halldór Laxness |website=Books and Writers (kirjasto.sci.fi) |first=Petri |last=Liukkonen |publisher=[[Kuusankoski]] Public Library |location=Finland |archive-url=https://web.archive.org/web/20070424191222/http://www.kirjasto.sci.fi/laxness.htm |archive-date=24 April 2007 |url-status=dead }}</ref><ref>Hallberg, Peter, ''Halldór Laxness''. Twayne Publishers, New York, translated by [[Rory McTurk]], 1971, pp. 35, 38</ref>
* [[Graham Leonard]]: former Anglican [[Bishop of London]]<ref>{{cite news |url=https://www.theguardian.com/world/2010/jan/06/monsignor-graham-leonard-obituary |title=Monsignor Graham Leonard obituary |first=Alan |last=Webster |date=6 January 2010 |newspaper=The Guardian |access-date=24 March 2017}}</ref><ref>''Bishop of London who became the most senior Anglican defector to Rome since the Reformation'', obituary in the ''[[Daily Telegraph]]'', issue number 48,085 dated 7 January 2010, p. 31</ref>
* [[Ignace Lepp]]: French psychiatrist whose parents were freethinkers; joined the Communist party at age fifteen; broke with the party in 1937 and eventually became a Catholic priest<ref>[https://web.archive.org/web/20070619023920/http://www.time.com/time/magazine/article/0,9171,896909,00.html Time Magazine from 19 July 1963] "Lepp has the credentials to explain the mind of the atheist: he was one himself for 27 years."</ref>
* [[Shane Leslie]]: Irish-born diplomat and writer. He was a first cousin of [[Winston Churchill]]
* [[Dilwyn Lewis]]: Welsh clothes designer and priest<ref>{{cite news |url=https://www.telegraph.co.uk/news/obituaries/1349213/Monsignor-Dilwyn-Lewis.html |title=Monsignor Dilwyn Lewis |newspaper=The Daily Telegraph|access-date=24 March 2017}}</ref>
* [[Li Yingshi]]: Ming-era Chinese military officer and a renowned mathematician, astrologer and [[feng shui]] expert, who was among the first Chinese literati to become Christian
* [[Francis Libermann]]: venerated Catholic, raised in [[Orthodox Judaism]]; has been called "the second founder of the [[Holy Ghost Fathers]]"<ref>{{cite CE1913 |wstitle=Ven. Francis Mary Paul Libermann |first=John T. |last=Murphy |volume=9}}</ref>
* [[Antonio Ligabue]]: Italian painter of Swiss birth<ref>{{Cite web|title=Antonio Ligabue {{!}} ParmaTales.com|url=http://www.parmatales.com/en-US/antonio-ligabue.aspx|access-date=2020-08-31|website=www.parmatales.com}}</ref><ref>{{cite web| url = https://www.ebay.co.uk/itm/Painting-NAIF-painter-ITALIAN-Antonio-Ligabue-Zurigo-Gualtieri-madhouse-masters-/401492524436| url-status = dead| archive-url = https://web.archive.org/web/20180413043557/https://www.ebay.co.uk/itm/Painting-NAIF-painter-ITALIAN-Antonio-Ligabue-Zurigo-Gualtieri-madhouse-masters-/401492524436| archive-date = 2018-04-13| title = Painting NAIF painter ITALIAN Antonio Ligabue Zurigo Gualtieri madhouse masters {{!}} eBay}}</ref>
*[[Luca Lionello]]: being an atheist for 40 years, this Italian actor converted when he was part of the cast of the 2004 epic drama [[The Passion of the Christ]], playing [[Judas Iscariot|Judas Ischkariot]] 
* [[William Lockhart (priest)|William Lockhart]]: first member of the [[Oxford Movement]] to convert and become a Catholic priest<ref>{{cite CE1913 |wstitle=William Lockhart |first=Thomas |last=Kennedy |volume=9}}</ref>
* [[James Longstreet]]: Confederate general turned Republican "[[scalawag]]"<ref>{{cite CE1913 |wstitle=James Longstreet |first=Thomas Francis |last=Meehan |volume=9}}</ref>
* [[Emily Loveday]] (b. 1799): her father caused a fuss when he discovered that she had been converted while at boarding school in Paris.<ref name=eorb>{{Cite ODNB |title=The Oxford Dictionary of National Biography |date=2004-09-23 |url=http://www.oxforddnb.com/view/article/96076 |editor-last=Matthew |editor-first=H. C. G. |access-date=2023-08-03 |place=Oxford |doi=10.1093/ref:odnb/96076 |editor2-last=Harrison |editor2-first=B. |editor3-last=Goldman |editor3-first=L.}}</ref>
* [[Frederick Lucas]]: Quaker who converted and founded ''[[The Tablet]]''<ref>{{cite web |url=http://www.thetablet.co.uk/pages/history/ |title=History of The Tablet |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20080705021115/http://www.thetablet.co.uk/pages/history/ |archive-date=2008-07-05}}</ref>
* [[Clare Boothe Luce]]: American playwright, editor, politician, and diplomat; wife of [[Time-Life]] founder [[Henry Luce]];worked on the screenplay of the nun-themed film ''[[Come to the Stable]]''; became a [[Dames of Malta|Dame of Malta]]<ref>{{cite web |url=http://biology.creighton.edu/luce/About_Clare_Boothe_Luce.html |title=About Clare Boothe Luce - Creighton University |access-date=24 March 2017}}</ref><ref>{{cite news |url=https://www.nytimes.com/learning/general/onthisday/bday/0310.html |title=Clare Boothe Luce Dies at 84: Playwright, Politician, Envoy |access-date=24 March 2017|newspaper=The New York Times }}</ref>
* [[Arnold Lunn]]: skier, mountaineer, and writer; agnostic; wrote ''Roman Converts'', which took a critical view of Catholicism and the converts to it; later converted to Catholicism due to debating with converts, and became an apologist for the faith<ref>{{cite book |pages=[https://books.google.com/books?id=wO4HRt1361UC&dq=%22arnold+lunn%22+agnostic&pg=PA199 199]–201 |title=Catholic Converts: British and American Intellectuals Turn to Rome |first=Patrick |last=Allitt |date=1 January 2000 |publisher=Cornell University Press}}</ref>
* [[Jean-Marie Lustiger]]: [[Roman Catholic Archdiocese of Paris|Catholic Archbishop of Paris]], 1981–2005; a Cardinal
* [[James Patterson Lyke]]: [[Roman Catholic Archbishop of Atlanta|Catholic Archbishop of Atlanta]], 1991–1992<ref>{{Cite web|url=http://www.georgiabulletin.org/local/1993/01/07/a/|archive-url=https://web.archive.org/web/20100621083401/http://georgiabulletin.org/local/1993/01/07/a/ |url-status=dead |title=Obituary in the Georgia Bulletin|archive-date=21 June 2010}}</ref>
* [[Jan Lipšanský|Jan Lipsansky]]: Czech writer

===M===
* [[Empress Dowager Ma (Southern Ming)]]: concubine of the [[Zhu Changying|Prince Duan of Gui]] and mother of the [[Zhu Youlang|Yongli Emperor]]<ref>{{cite web |url=https://www.academia.edu/17486007 |title=The Miraculous Conversions at the Chinese Imperial Court Related by Michael Boym SI |last=Miazek-Męczyńska |first=Monika |date=2015 |website=academia.edu |page=28 |access-date=22 June 2023}}</ref>
* [[Alasdair MacIntyre]]: [[Virtue ethics|virtue ethicist]] and moral philosopher<ref>{{cite web |url=http://www.iep.utm.edu/p-macint/ |title=MacIntyre: Political Philosophy - Internet Encyclopedia of Philosophy |access-date=24 March 2017}}</ref>
* [[Gustav Mahler]]: Austrian composer; converted from Judaism.  There is disagreement whether his conversion was a genuine or pragmatic one to overcome institutional and professional barriers against Jews<ref>{{cite web |url=http://classicalmusic.about.com/od/classicalcomposers/p/mahlerprofile.htm |title=Learn About Gustav Mahler With a Profile of The Romantic Composer |access-date=24 March 2017 |archive-date=28 July 2016 |archive-url=https://web.archive.org/web/20160728131409/http://classicalmusic.about.com/od/classicalcomposers/p/mahlerprofile.htm |url-status=dead }}</ref><ref>{{Cite book|last=Carr|first=Jonathan|title=Mahler: A Biography|publisher=The Overlock Press|year=1998|location=Woodstock, NY|pages=83–84}}</ref>
* [[Enrique de Malaca]]: [[Malay race|Malay]] slave of [[Ferdinand Magellan]]; converted to Catholicism after being purchased in 1511<ref>http://www.theawl.com/2012/07/the-slave-who-circumnavigated-the-world The Slave Who Circumnavigated The World</ref><ref>http://www.voaindonesia.com/content/sejarawan-harvard-penjelajah-bumi-pertama-putera-melayu/1711514.html Sejarawan Universitas Harvard: Penjelajah Bumi Pertama adalah Putera Melayu</ref>
* [[Henry Edward Manning]]: English Anglican clergyman who became a Catholic Cardinal and Archbishop of Westminster<ref>{{cite CE1913 |last=Kent |first=William |wstitle=Henry Edward Manning |volume=9}}</ref>
* [[Gabriel Marcel]]: leading [[Christian existentialism|Christian existentialist]]; his upbringing was agnostic<ref>{{cite book |page=[https://books.google.com/books?id=QpxYqdhvIdIC&dq=%22Gabriel%20Marcel%22%20agnostic&pg=PA269 269] |title=Phenomenological Approaches to Moral Philosophy: A Handbook |first1=J. J. |last1=Drummond |first2=Lester |last2=Embree |date=31 July 2002 |publisher=Springer Netherlands}}</ref>
* [[Jacques Maritain]]: French Thomist philosopher; helped form the basis for international law and human rights law in his writings; also laid the intellectual foundation for the [[Christian democratic]] movement<ref>{{cite journal |url=http://ndpr.nd.edu/news/23039-the-very-rich-hours-of-jacques-maritain/ |title=Review of The Very Rich Hours of Jacques Maritain |first=Peter A. |last=Redpath |date=5 January 2004 |journal=Notre Dame Philosophical Reviews |access-date=24 March 2017}}</ref>
* [[Taylor Marshall]]: American former Anglican priest, now a Catholic author and YouTuber/podcaster.
* [[Tobie Matthew]]: Member of English Parliament who became a Catholic priest<ref>{{cite CE1913 |wstitle=Sir Tobie Matthew |first=Edwin Hubert |last=Burton |volume=10}}</ref>
* [[Robert L. May]]: creator of ''[[Rudolph the Red-Nosed Reindeer]]''; converted from Judaism after marrying his second wife, a Catholic.
* [[Virginia Mayo]]: American stage, movie and television actress, wife of actor [[Michael O'Shea (actor)|Michael O'Shea]]: (''[[The Princess and the Pirate]]'', ''[[The Best Years of Our Lives]]'', ''[[The Secret Life of Walter Mitty (1947 film)|The Secret Life of Walter Mitty]]'', ''[[The Silver Chalice]]'' etc.); converted by Bishop Fulton Sheen.
* [[James McAuley]]: Australian poet; converted in 1952<ref>{{Cite Australian Dictionary of Biography |id2=mcauley-james-phillip-10896 |year=2000 |volume=15 |title=James Phillip McAuley (1917–1976) |first=Peter |last=Pierce |access-date=24 March 2017}}</ref>
* [[Claude McKay]]: bisexual Jamaican poet; went from Communist-leaning atheist to an active Catholic Christian after a stroke<ref>{{cite book |last1=James |first1=Winston |first2=Claude |last2=McKay |title=A Fierce Hatred of Injustice: Claude McKay's Jamaica and His Poetry of Rebellion |url=https://books.google.com/books?id=85KuR05BDacC&pg=PA46 |year=2000 |publisher=Verso |isbn=978-1-85984-740-4 |page=46}}: "Prior to his conversion to Catholicism in 1944, his atheism was one of the most powerful and enduring threads of continuity in his outlook on life."</ref><ref>{{cite book |pages=[https://books.google.com/books?id=FfAeCHw5Q1AC&dq=%22claude+mckay%22+catholic&pg=PA423 357]–359 |title=Claude McKay, Rebel Sojourner in the Harlem Renaissance: A Biography |first=Wayne F. |last=Cooper |date=1 February 1996 |publisher=LSU Press}}</ref>
* [[Gavin McInnes]]: Canadian far-right activist. Founder of the [[Proud Boys]].{{citation needed|date=March 2022}}
* [[Marshall McLuhan]]: Canadian philosopher of communication theory; coined the terms "[[the medium is the message]]" and "[[global village (term)|global village]]"; converted in 1937 after reading the works of [[G.K. Chesterton]]
* [[Thomas Merton]]: American [[Trappist]] monk and spiritual writer<ref>{{cite web |url=https://www.nytimes.com/books/98/10/11/bookend/bookend.html |title=Thomas Merton's Durable Mountain |website=[[The New York Times]] |access-date=24 March 2017}}</ref>
* [[Vittorio Messori]]: Italian journalist and writer called the "most translated Catholic writer in the world" by [[Sandro Magister]]; before his conversion in 1964 he had a "perspective as a secularist and agnostic"<ref>{{Cite web|url=http://www.chiesa.espressonline.it/dettaglio.jsp?id=7066&eng=y|archive-url=https://web.archive.org/web/20050422211142/http://www.chiesa.espressonline.it/dettaglio.jsp?id=7066&eng=y |url-status=dead |title="From Rome to the World: The Global Offensive of the Catholic Media" 20 August 2004|archive-date=22 April 2005}}</ref><ref>{{cite book |page=[https://books.google.com/books?id=SBlAAQAAIAAJ&q=%22Atheists%20who%20converted%20to%20Christianity%22 57] |title=Who's who in Hell: A Handbook and International Directory for Humanists, Freethinkers, Naturalists, Rationalists, and Non-theists |first=Warren Allen |last=Smith |date=1 January 2000 |publisher=Barricade Books}}</ref><ref>{{Cite web|url=http://www.firstthings.com/article/2008/10/003-seasoned-fare-26|archive-url=https://web.archive.org/web/20130410011230/http://www.firstthings.com/article/2008/10/003-seasoned-fare-26 |url-status=dead |title=First Things|archive-date=10 April 2013}}</ref>
* [[Alice Meynell]]: poet and [[suffragist]]<ref>{{cite web |url=http://xroads.virginia.edu/~PUBLIC/FEG/alice/ambio.html |title=Alice Meynell biography page |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20150419021313/http://xroads.virginia.edu/~public/feg/alice/ambio.html |archive-date=19 April 2015 |url-status=dead }}</ref>
* [[Czesław Miłosz]]: [[poet]], [[prose]] writer, [[translator]] and [[diplomat]]; awarded the [[Neustadt International Prize for Literature]] and the 1980 [[Nobel Prize in Literature]]<ref name="Haven, Cynthia L. 2006, p. 145">Haven, Cynthia L., "'A Sacred Vision': An Interview with Czesław Miłosz", in Haven, Cynthia L. (ed.), ''Czesław Miłosz: Conversations''. University Press of Mississippi, 2006, p. 145.</ref>
* [[Michelle Mone, Baroness Mone]]: Scottish businesswoman and life peeress<ref name="Observer">{{cite web |author=Cadwalladr |first=Carole |date=12 September 2010 |title=The first lady of lingerie |url=https://www.theguardian.com/lifeandstyle/2010/sep/12/michelle-mone-lingerie-71-degrees-north |url-status=live |archive-url=https://web.archive.org/web/20130824201315/http://www.theguardian.com/lifeandstyle/2010/sep/12/michelle-mone-lingerie-71-degrees-north |archive-date=24 August 2013 |work=The Guardian}}</ref>
* [[John Brande Morris]]: priest, writer, student of [[Patristics|Patristic]] theology, and scholar of the [[Syriac language]]<ref>{{cite CE1913 |wstitle=John Brande Morris |first=Andrew Alphonsus |last=MacErlean |volume=10}}</ref>
* [[Henry Morse]]: one of the [[Forty Martyrs of England and Wales]]<ref>{{cite CE1913 |wstitle=Ven. Henry Morse |first=John Bannerman |last=Wainewright |volume=10}}</ref>
* [[Malcolm Muggeridge]]: British journalist and author who went from agnosticism to the [[Catholic Church]]<ref>{{cite book |url=https://books.google.com/books?id=oaEfbtzqEUwC&q=%22malcolm%20muggeridge%22%20agnostic&pg=PT1 |title=Malcolm Muggeridge: A Life |first=Ian |last=Hunter |date=1 January 2003 |publisher=Regent College Publishing|isbn=9781573832595 }}</ref>
* [[William Munk]]: English physician and medical historian remembered chiefly for "Munk's Roll", a biographical reference work on the Royal College of Physicians.

===N===
* [[Takashi Nagai]]: physician specializing in radiology; author of ''[[The Bells of Nagasaki]]''<ref>{{cite web |url=http://www1.city.nagasaki.nagasaki.jp/peace/japanese/abm/insti/nagai/nagai_s/nagai001e.html |title=The Man who Loved Others as Himself |access-date=24 March 2017 |archive-date=18 May 2013 |archive-url=https://web.archive.org/web/20130518011118/http://www1.city.nagasaki.nagasaki.jp/peace/japanese/abm/insti/nagai/nagai_s/nagai001e.html |url-status=dead }}</ref>
* [[Bernard Nathanson]]: Jewish convert and medical doctor; a founding member of NARAL; he later recanted and became an anti-abortion proponent<ref>Nathanson, Bernand ''Aborting America'' (1981 Pinnacle Books)</ref>
*[[Michael Nazir-Ali]]: Anglican [[Bishop of Rochester]] from 1994 to 2009. Currently the director of the Oxford Centre for Training, Research, Advocacy and Dialogue. Converted to Catholicism in 2021, ordained a priest for the [[Anglican Ordinariate]]<ref>{{Cite web|date=2021-10-14|title=Dr Michael Nazir-Ali, former Anglican Bishop of Rochester, joins the Catholic Church|url=https://catholicherald.co.uk/dr-michael-nazir-ali-former-anglican-bishop-of-rochester-joins-the-catholic-church/|access-date=2021-10-15|website=Catholic Herald|language=en-GB}}</ref>
*[[Ronaldo (Brazilian footballer)|Ronaldo Luís Nazário de Lima]]: Brazilian footballer; baptized as a Catholic in 2023.<ref>{{Cite web |last=Summerscales |first=Robert |date=2023-09-14 |title=Soccer Legend Ronaldo Baptized In Catholic Church |url=https://www.si.com/fannation/soccer/futbol/news/soccer-legend-ronaldo-baptized-in-catholic-church |access-date=2024-04-30 |website=Futbol on FanNation |language=en}}</ref>
* [[Patricia Neal]]: won the [[Academy Award for Best Actress]] for her role in ''[[Hud (1963 film)|Hud]]''<ref>{{Cite news|url=https://www.theglobeandmail.com/arts/film/me-and-miss-neal/article4324575/|title=Me and Miss Neal|first=Gale Zoë|last=Garnett|newspaper=The Globe and Mail |date=13 August 2010|via=www.theglobeandmail.com}}</ref>
* [[Knut Ansgar Nelson]]: Danish-born convert who was a bishop of the [[Roman Catholic Diocese of Stockholm|Catholic Diocese of Stockholm]]<ref>{{cite web |url=https://pqasb.pqarchiver.com/projo/access/580008471.html?dids=580008471:580008471&FMT=ABS&FMTS=ABS:FT&type=current&date=Apr%2001,%201990&author=&pub=The%20Providence%20Journal&desc=Rev.%20Knut%20A.%20Nelson,%2083,%20dies;%20former%20bishop,%20teacher,%20theologian&pqatl=google |archive-url=https://archive.today/20120713134637/http://pqasb.pqarchiver.com/projo/access/580008471.html?dids=580008471:580008471&FMT=ABS&FMTS=ABS:FT&type=current&date=Apr+01,+1990&author=&pub=The+Providence+Journal&desc=Rev.+Knut+A.+Nelson,+83,+dies;+former+bishop,+teacher,+theologian&pqatl=google |url-status=dead |archive-date=13 July 2012 |title=ProQuest Archiver: Titles |access-date=24 March 2017}}</ref>
* [[Irène Némirovsky]]: author of the controversial ''[[David Golder]]'', autobiographical ''[[Le Vin de solitude]]'', and posthumous success ''[[Suite française (Irène Némirovsky)|Suite française]]''<ref>{{cite news |url=http://books.guardian.co.uk/comment/story/0,,2018357,00.html |newspaper=The Guardian |location=London |title=Truth, lies and anti-semitism |first=Stuart |last=Jeffries |date=22 February 2007 |access-date=24 May 2010}}</ref><ref name="nyt_2010">{{cite news |last=Cohen |first=Patricia |date=25 April 2010 |title=Assessing Jewish Identity of Author Killed by Nazis |work=[[The New York Times]] |url=https://www.nytimes.com/2010/04/26/books/26nemirovsky.html}}</ref><ref>{{cite book |url=https://books.google.com/books?id=gWAlBORp92MC&pg=PA171 |title=Irène Némirovsky: Her Life and Works |first=Jonathan M. |last=Weiss |publisher=Stanford University Press |date=2007 |pages=171–172 |isbn=978-0-8047-5481-1}}</ref>
* [[Richard John Neuhaus]]: priest; founder and editor of the journal ''[[First Things]]''<ref>{{cite web |url=http://www.thedailybeast.com/ |title=The Daily Beast |access-date=24 March 2017}}</ref>
* [[John Henry Newman]]: English priest and cardinal, former Anglican priest, famous for his autobiographical book ''[[Apologia Pro Vita Sua]]'' in which he details his reasons for converting<ref>{{cite web |url=http://www.newadvent.org/cathen/10794a.htm |title=CATHOLIC ENCYCLOPEDIA: John Henry Newman |access-date=24 March 2017}}</ref>
* [[Keith Newton (prelate)|Keith Newton]]: formerly an Anglican bishop<ref name="BBC11709148" />
* [[Donald Nicholl]]: British historian and theologian who has been described as "one of the most widely influential of modern Christian thinkers"<ref>{{cite web |url=https://www.independent.co.uk/news/people/obituary-professor-donald-nicholl-1260181.html |title=Obituary: Professor Donald Nicholl |website=[[The Independent]] |date=7 May 1997 |access-date=24 March 2017}}</ref>
* [[Barthold Nihus]]: German convert who became a bishop and controversialist<ref>{{cite CE1913 |wstitle=Barthold Nihus |first=Friedrich |last=Lauchert |volume=11}}</ref>
* [[Robert Novak]]: American journalist and political commentator; raised Jewish, but practiced no religion for many years before converting to Catholicism in the last years of his life<ref>{{cite news |first=Barbara |last=Matuswo |title=The Conversion of Bob Novak |work=Washingtonian |date=1 June 2003 |url=http://www.washingtonian.com/articles/people/the-conversion-of-bob-novak/}}</ref>
* [[Alfred Noyes]]: English poet, best known for "[[The Highwayman (poem)|The Highwayman]]"; dealt with his conversion in ''The Unknown God''; ''The Last Voyage'', in his ''The Torch-Bearers'' trilogy, was influenced by his conversion<ref>{{cite book |page=[https://books.google.com/books?id=mkRD-NLNyJYC&dq=%22alfred+noyes%22+conversion&pg=PA132 132] |title=Literary Converts: Spiritual Inspiration in an Age of Unbelief |first=Joseph |last=Pearce |date=24 March 2017 |publisher=Ignatius Press}}</ref><ref>{{cite book |page=[https://books.google.com/books?id=A_YatfLrgnMC&dq=%22&pg=PA401 401] |title=The Atlantic Companion to Literature in English |first=Ed Mohit K. |last=Ray |date=1 September 2007 |publisher=Atlantic Publishers & Dist}}</ref>

===O===
* [[Frederick Oakeley]]: priest and author known for his translation of "[[Adeste Fideles]]" into English as "O Come, All Ye Faithful"<ref>{{cite web |url=http://www.oxfordreference.com/view/10.1093/oi/authority.20110803100243113 |title=Frederick Oakeley |website=Oxford Reference |access-date=24 March 2017}}</ref><ref>{{cite book |url=https://books.google.com/books?id=IYLJvjgg3tUC&pg=PA67 |title=A Passionate Humility: Frederick Oakeley and the Oxford Movement |first=Peter |last=Galloway |date=1 January 1999 |publisher=Gracewing Publishing|isbn=9780852445068 }}</ref>
* [[John M. Oesterreicher]]: Jewish convert who became a monsignor and a leading advocate of Jewish-Catholic reconciliation<ref>{{cite news |url=https://www.nytimes.com/1993/04/20/obituaries/j-m-oesterreicher-monsignor-who-wrote-on-jews-dies-at-89.html |title=J. M. Oesterreicher, Monsignor Who Wrote on Jews, Dies at 89 |first=Wolfgang |last=Saxon |date=20 April 1993 |newspaper=NYTimes |access-date=24 March 2017}}</ref>
* [[William E. Orchard]]: liturgist, pacifist and ecumenicist; before becoming a Catholic priest he was a Protestant minister<ref>[http://libserv23.princeton.edu/princetonperiodicals/cgi-bin/princetonperiodicals?a=d&d=Princetonian19400309-01.2.2&e=-------en-20--1--txt-IN-----  Daily Princetonian. 9 March 1940. Retrieved 18 January 2013]{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
* [[Johann Friedrich Overbeck]]: German painter in the [[Nazarene movement]] of religious art<ref>{{cite EB1911 |wstitle=Overbeck, Johann Friedrich |first=J. Beavington |last=Atkinson |volume=20 |page=383}}</ref>
* [[Candace Owens]]: American political commentator; converted from Protestantism to Catholicism in 2024.<ref>{{Cite web |title=Candace Owens converts to Catholicism {{!}} National Catholic Reporter |url=https://www.ncronline.org/news/candace-owens-converts-catholicism,%20https://www.ncronline.org/news/candace-owens-converts-catholicism |access-date=2024-04-30 |website=www.ncronline.org |language=en}}</ref>

===P===
* [[Coventry Patmore]]: English poet and critic known for ''[[The Angel in the House]]''<ref>{{cite CE1913 |wstitle=Coventry Patmore |first=Alice |last=Meynell |volume=11}}</ref>
* [[Joseph Pearce]]: anti-Catholic and agnostic [[British National Front]] member; became a devoted Catholic writer with a series on [[EWTN]]<ref>{{Cite web|url=http://ethicscenter.nd.edu/events/ccs/F08/F08.shtml|archive-url=https://web.archive.org/web/20100612041216/http://ethicscenter.nd.edu/events/ccs/F08/F08.shtml |url-status=dead |title=Notre Dame Center for Ethics and Culture|archive-date=12 June 2010}}</ref><ref>{{Cite magazine |url=http://spectator.org/archives/2007/12/12/christmas-books-2007-part-ii |title=Christmas Books 2007, Part II |date=12 December 2007 |first=Kevin |last=Lynch |magazine=[[The American Spectator]] |archive-url=https://web.archive.org/web/20130509134533/http://spectator.org/archives/2007/12/12/christmas-books-2007-part-ii |url-status=dead |archive-date=9 May 2013}}</ref>
* [[Vladimir Pecherin]]: Russian convert and priest whose memoirs were controversial for criticizing both the Russian government and the Catholic Church of his time<ref>{{cite web |url=http://www.ucdpress.ie/display.asp?K=9781904558934&aub=Vladimir%20Pecherin&m=1&dc=1 |title=University College Dublin Press |first=Site constructed by Ehaus |last=www.ehaus.co.uk |access-date=24 March 2017}}</ref>
* [[Charles Péguy]]: French poet, essayist, and editor; went from an agnostic humanist to a pro-Republic Catholic<ref>{{cite book |page=[https://books.google.com/books?id=5QeF34Z3ae0C&dq=%22charles%20peguy%22%20agnostic&pg=PA85 85] |title=Political Ecumenism: Catholics, Jews, and Protestants in De Gaulle's Free France, 1940–1945 |first=Geoffrey |last=Adams |date=6 November 2006 |publisher=McGill-Queen's Press - MQUP}}</ref>
* [[Walker Percy]]: [[Laetare Medal]]-winning author of ''[[The Moviegoer]]'' and ''[[Love in the Ruins]]''<ref>{{cite news |url=https://www.nytimes.com/1985/08/04/books/existentialism-semiotics-and-iced-tea.html |title=Existentialism Semiotics and Iced Tea |first=Roger |last=Kimball |date=4 August 1985 |newspaper=NYTimes |access-date=24 March 2017}}</ref>
* [[Sarah Peter]]: American philanthropist; daughter of Ohio governor [[Thomas Worthington (governor)|Thomas Worthington]]
* [[Johann Pistorius]]: German controversialist and historian<ref>{{cite CE1913 |wstitle=Johann Pistorius |first=Friedrich |last=Lauchert |volume=12}}</ref>
* [[John Hungerford Pollen (senior)|John Hungerford Pollen]]: wrote for ''[[The Tablet]]''; Professor of Fine Arts at the [[Catholic University of Ireland]]<ref>{{cite ODNB |id=35558 |title=Pollen, John Hungerford (1820–1902) |first=Suzanne Fagence |last=Cooper}}</ref>
* [[Ramesh Ponnuru]]: American conservative political pundit and journalist<ref>{{Cite web|date=2014-07-11|title=Conservative and Catholic: 12 Questions for Ramesh Ponnuru|url=https://www.americamagazine.org/content/all-things/conservative-and-catholic-12-questions-ramesh-ponnuru|access-date=2021-04-15|website=America Magazine|language=en}}</ref>
* [[Kirsten Powers]]: American political analyst & fox news columnist.
* [[Agni Pratistha]]: [[Demographics of Indonesia|Indonesian]] actress, model and former beauty queen; elected [[Puteri Indonesia]] 2006; converted to [[Catholicism]] after marriage, although initially denied rumors of conversion<ref>{{usurped|1=[https://web.archive.org/web/20161207205748/http://oktavita.com/foto-agni-pratistha-menikah-di-gereja.htm Article title]}} Foto Agni Pratistha Menikah di Gereja</ref><ref>http://www.tribunnews.com/seleb/2013/12/15/agni-pratistha-baru-resepsi-meski-menikah-juni-di-amrik Agni Pratistha, Baru Resepsi Meski Menikah Juni di Amrik</ref><ref>http://www.jpnn.com/read/2014/01/16/211141/Kehamilan-Agni-Pratistha-Disebar-di-Instagram-# {{Webarchive|url=https://web.archive.org/web/20161018223917/http://www.jpnn.com/read/2014/01/16/211141/Kehamilan-Agni-Pratistha-Disebar-di-Instagram- |date=18 October 2016 }} Kehamilan Agni Pratistha Disebar di Instagram</ref>
* [[Vincent Price]]: American actor; converted to Catholicism to marry his third wife, Australian actress [[Coral Browne]] (she became an American citizen for him); he reportedly lost interest in the faith after her death<ref>{{cite book |url=https://books.google.com/books?id=G6Mnh1z81YEC&pg=PT307 |title=Vincent Price: A Daughter's Biography |first=Victoria |last=Price |date=1 April 2011 |publisher=Macmillan|isbn=9781429979481 }}</ref>
* [[Erik Prince]]: founder of [[Academi|Blackwater Worldwide]]<ref>{{cite magazine |url=https://www.vanityfair.com/politics/features/2010/01/blackwater-201001 |title=January 2010: Adam Ciralsky on Blackwater |first=Adam |last=Ciralsky |magazine=Vanity Fair |date=2 December 2009 |issue=January |access-date=24 March 2017}}</ref>
* [[Augustus Pugin]]: English-born architect, designer and theorist of design; known for [[Gothic Revival architecture]]; advocate for reviving the Catholic Church in England<ref>{{cite web |url=http://www.abc.net.au/compass/s3510122.htm |title=Compass: Tasmanian Gothic - ABC TV |website=[[Australian Broadcasting Corporation]] |access-date=24 March 2017|date=24 June 2012 }}</ref>

===R===
* [[Brent Robbins]]: Associate Professor of Psychology at [[Point Park University]] in Pittsburgh, Pennsylvania<ref>{{cite web |url=https://chnetwork.org/signposts/youre-smart-catholic-brent-robbins/ |title=You're so smart! How could you be Catholic? |date=7 December 2017 |work=The Coming Home Network}}</ref>
* [[Marie-Alphonse Ratisbonne]]: co-founder of the [[Congregation of Our Lady of Sion]], which originally worked to convert Jewish people like himself<ref>{{cite CE1913 |last=Ott |first=Michael |wstitle=Maria Alphonse Ratisbonne |volume=12}}</ref>
* [[Marie Theodor Ratisbonne]]: co-founder of the Congregation of Our Lady of Sion; converted before his brother<ref>{{cite CE1913 |last=Hehir |first=Martin |wstitle=Maria Theodor Ratisbonne |volume=12}}</ref>
* [[Sally Read]]: [[Eric Gregory Award]]-winning poet who converted to Catholicism<ref>{{cite web |url=http://www.abc.net.au/radionational/programs/spiritofthings/emotions-and-beliefs/3781280 |title=EMOTIONS AND BELIEFS |date=24 January 2012 |publisher=Australian Broadcasting Corporation (ABC) |access-date=24 March 2017}}</ref>
* [[Joseph Warren Revere (general)|Joseph Warren Revere]]: American [[Union (American Civil War)|Union]] army General and grandson of [[Paul Revere]]; converted in 1862 during the Civil War<ref name=":7">{{Cite web |last=Blog |first=McNamara's |date=2012-10-19 |title=Paul Revere's Grandson, Civil War General, Becomes Catholic |url=https://www.patheos.com/blogs/mcnamarasblog/2012/10/paul-reveres-grandson-civil-war-general-becomes-catholic.html |access-date=2022-06-16 |website=McNamara's Blog |language=en}}</ref>
* [[William Reynolds (theologian)|William Reynolds]]: English Catholic theologian and Biblical scholar<ref>{{cite DNB |first=James McMullen |last=Rigg |wstitle=Rainolds, William |volume=47 |page=182–183}}</ref>
* [[Dewi Rezer]]: [[Demographics of Indonesia|Indonesian]] model of French descent; converted to Catholicism<ref>http://www.kapanlagi.com/showbiz/selebriti/toleransi-beragama-di-keluarga-dewi-rezer-coo3qbm.html Toleransi Beragama di Keluarga Dewi Rezer</ref><ref>{{cite web|url=http://www.indosiar.com/gossip/menikah-di-bali-dewi-rezer--marcelino-seperti-mimpi_63041.html |title=Menikah di Bali, Dewi Rezer & Marcelino Seperti Mimpi - Gossip |access-date=2015-04-25 |url-status=dead |archive-url=https://web.archive.org/web/20150726000816/http://www.indosiar.com/gossip/menikah-di-bali-dewi-rezer--marcelino-seperti-mimpi_63041.html |archive-date=26 July 2015 }} Menikah di Bali, Dewi Rezer & Marcelino Seperti Mimpi</ref>
* [[Anthony Rhodes]]: English writer
* [[Paul Richardson (priest)|Paul Richardson]]: formerly an Anglican bishop<ref>{{cite news |url=http://blogs.telegraph.co.uk/news/damianthompson/100026435/church-of-england-bishop-converts-to-rome/ |archive-url=https://web.archive.org/web/20100219043737/http://blogs.telegraph.co.uk/news/damianthompson/100026435/church-of-england-bishop-converts-to-rome/ |url-status=dead |archive-date=19 February 2010 |title=Opinion |newspaper=The Daily Telegraph|access-date=24 March 2017}}</ref>
* [[Knute Rockne]]: Norwegian-American Notre Dame football coach, 1918–1930; converted from Lutheranism<ref>{{cite web |title=Tom and Kate Hickey Family History: 20 Nov. 1925: Tom Hickey Became Knute Rockne's Godfather |url=http://tomandkatehickeyfamilyhistory.blogspot.com/2013/11/88-years-ago-today-tom-hickey-became_20.html |work=tomandkatehickeyfamilyhistory.blogspot.com}}</ref>
* [[Alban Roe]]: Benedictine; one of the [[Forty Martyrs of England and Wales]]<ref>{{cite CE1913 |wstitle=Bartholomew Roe |first=John Bannerman |last=Wainewright |volume=13}}</ref>
* [[Frederick Rolfe]] ("Baron Corvo"): English writer; his ''[[Hadrian the Seventh]]'' concerns a fictional Papal Conclave
* [[Lila Rose]]: American president of anti-abortion organization [[Live Action (organization)|Live Action]]<ref>{{cite news |last=Bell |first=Justin |date=February 3, 2012 |title=How Lila Rose Became Pro-Life ... and Catholic |newspaper=[[National Catholic Register]] |url=http://www.ncregister.com/daily-news/how-lila-rose-became-pro-life-and-catholic |url-status=live |archive-url=https://web.archive.org/web/20140224130940/http://www.ncregister.com/daily-news/how-lila-rose-became-pro-life-and-catholic |archive-date=February 24, 2014 |access-date=May 1, 2013}}</ref>
* [[Sylvester Horton Rosecrans]]: first bishop of the [[Roman Catholic Diocese of Columbus|Catholic Diocese of Columbus]]<ref name="CE13191c" >{{cite CE1913 |last=Meehan |first=Thomas |wstitle=William and Sylvester Rosecrans |volume=13}}</ref>
* [[William Rosecrans]]: Sylvester's brother, a [[Union Army]] general in the [[American Civil War]]<ref name="CE13191c" />
* [[Anthony Ross (Catholic Priest)|Anthony Ross]]: Scottish priest who served as [[Rector of the University of Edinburgh]] from 1979 to 1982<ref>{{Cite web|url=http://scotland.op.org/edinburgh/past_community/ian_anthony_ross.html|archive-url=https://web.archive.org/web/20110719094538/http://scotland.op.org/edinburgh/past_community/ian_anthony_ross.html |url-status=dead |title=St Albert the Great Chaplaincy Edinburgh|archive-date=19 July 2011}}</ref>
* [[Jonathan Roumie]]: American actor best known for playing the role of [[Jesus|Jesus Christ]] in television series [[The Chosen (TV series)|''The Chosen'']]''<ref name="ncregister">{{Cite news|last=Dail|first=Bree|date=4 May 2020|title=Actor in "The Chosen" Hopes to Lead People 'to Christ in Some Way'|work=[[National Catholic Register]]|url=https://www.ncregister.com/interview/actor-in-the-chosen-hopes-to-lead-people-to-christ-in-some-way}}</ref>''
* [[Joseph Rovan]]: historian, member of the [[French Resistance]], adviser on Franco-German relations<ref>{{cite news |url=https://www.telegraph.co.uk/news/obituaries/1469030/Joseph-Rovan.html |title=Joseph Rovan |newspaper=The Daily Telegraph|access-date=24 March 2017}}</ref>
* [[Giuni Russo]]: Italian singer-songwriter, developed a devotion to Saint Teresa of Avila<ref>{{cite web|url= https://www.laciviltacattolica.it/articolo/giuni-russo-una-vita-in-musica/ |title= GIUNI RUSSO: UNA VITA IN MUSICA|newspaper=La Civiltà Cattolica|date= 2 August 2013|access-date=27 March 2021}}</ref><ref>{{cite web |last1=Russino |first1=Riccardo |title=Il Papa Mi Ha Scritto: "Le Canzoni di Giuni Russo mi hanno Commosso" |url=https://www.giunirusso.it/press_giuni_russo/Giuni%20Russo%2037_2013.pdf |website=giunirusso.it |access-date=27 March 2021}}</ref>
* [[Richard Rutt]]: Catholic Monsignor, member of the [[House of Lords]], served as a missionary to Korea and as Bishop of Daejon in the Anglican Church of Korea and the Suffragan Bishop of Turo in the Church of England, prominent Korean Studies Scholar<ref>{{Church Times|title=Two bishops go to Rome|archive=1994_10_07_003|issue=6869|date=7 October 1994|page=3|accessed=15 March 2021}}</ref>

===S===
* [[Nazli Sabri]]: Queen of Egypt; mother of [[King Farouk]] of Egypt
* [[Siegfried Sassoon]]:  English poet, writer and soldier; converted in 1957<ref>{{cite web |url=http://www.poetryfoundation.org/bio/siegfried-sassoon |title=Siegfried Sassoon |date=24 March 2017 |access-date=24 March 2017}}</ref>
* [[Joseph Saurin]]: French mathematician and Calvinist minister<ref>{{cite web |url=http://www-history.mcs.st-andrews.ac.uk/Biographies/Saurin.html |title=Saurin biography |access-date=24 March 2017}}</ref>
* [[Paul Schenck]]: converted from Judaism to Episcopalianism to Catholicism; currently a Catholic priest and anti-abortion activist<ref>{{cite web |url=http://www.pennlive.com/midstate/index.ssf/2010/07/rev_paul_schenck_ordained_as_p.html |title=Rev. Paul Schenck ordained as priest after three decades of service to Catholic Church |access-date=24 March 2017|date=11 July 2010 }}</ref><ref>{{Cite web |url=http://www.catholic.org/national/national_story.php |archive-url=https://archive.today/20130703230241/http://www.catholic.org/national/national_story.php?id=36878 |archive-date=3 July 2013 |title=Pro-Life Hero, Catholic Convert, Deacon Paul Schenck, to be Ordained to the Priesthood |website=Catholic Online |access-date=26 May 2013 |url-status=live }}</ref> 
* [[Heinrich Schlier]]: German theologian<ref>{{cite web |url=http://www.30giorni.it/articoli_id_19828_l3.htm |title=30Giorni - Being homeless in this world (Interview with Veronika Kubina-Schlier by Lorenzo Cappelletti) |last=Gubbernet s.r.l. - Soluzioni per internet avvincente - |publisher=gubbernet.com |access-date=24 March 2017}}</ref>
* [[Roy Schoeman]]: former Harvard Professor, lecturer, and Jewish convert to Catholicism<ref>{{Cite web|title=Jewish professor turned atheist, until Mary intervened|url=https://bccatholic.ca/news/catholic-van/jewish-professor-turned-atheist-until-mary-intervened|access-date=2020-09-29|website=The B.C. Catholic|language=en}}</ref>
* [[Rob Schneider]]: American actor; converted to Catholicism in 2023 after having been raised by a Jewish father and a Catholic mother.<ref>{{Cite web |date=2024-01-02 |title=Comedian Rob Schneider on Why He's Now a Catholic |url=https://www.ncregister.com/blog/comedian-rob-schneider-on-why-he-is-now-a-catholic |access-date=2024-04-30 |website=NCR |language=en}}</ref>
* [[Dutch Schultz]] (Arthur Flegenheimer): American mobster; converted to Catholicism during his second trial, convinced that Jesus Christ had spared him jail time; after being fatally shot by underworld rivals, he asked to see a priest and was given the last rites; his mother insisted on dressing him in a Jewish prayer shawl prior to his interment in the Catholic [[Gate of Heaven Cemetery]]
* [[E. F. Schumacher]]: economic thinker known for ''[[Small Is Beautiful]]''; his ''[[A Guide for the Perplexed]]'' criticizes what he termed "[[Materialism|materialistic]] [[scientism]]"; went from atheism to Buddhism to Catholicism<ref>{{cite book |page=[https://books.google.com/books?id=luYywMlofcgC&pg=PA38 38] |title=New Scientist |date=26 July 1984 |publisher=Reed Business Information}}</ref>
* [[Countess of Ségur]]: French writer of Russian birth<ref>{{cite book |url=https://books.google.com/books?id=mpc53LXRvIQC&q=Countess%20of%20S%C3%A9gur%20converted%20catholicism&pg=PA351 |title=Catholic Women Writers: A Bio-bibliographical Sourcebook |first=Mary R. |last=Reichardt |date=1 January 2001 |publisher=Greenwood Publishing Group|isbn=9780313311475 }}</ref>
* [[John Sergeant (priest)|John Sergeant]]: English priest, controversialist and theologian<ref>{{cite CE1913 |wstitle=John Sergeant |first=Edwin Hubert |last=Burton |volume=13}}</ref>
* [[Elizabeth Ann Seton]]: first native-born citizen of the United States to be canonized by the Catholic Church<ref>{{Cite web|url=http://www.pitt.edu/~eflst4/seton2.html|archive-url=https://web.archive.org/web/20131011095831/http://www.pitt.edu/~eflst4/seton2.html |url-status=dead |title=Pitt.edu|archive-date=11 October 2013}}</ref><ref>{{cite web |url=https://nymag.com/listings/attraction/shrine-of-st-elizabeth-ann-seton/ |title=The Shrine of St. Elizabeth Ann Seton |access-date=24 March 2017 |archive-date=26 August 2022 |archive-url=https://web.archive.org/web/20220826232509/https://nymag.com/listings/attraction/shrine-of-st-elizabeth-ann-seton/ |url-status=dead }}</ref>
* [[Frances Shand Kydd]]: mother of [[Diana, Princess of Wales]]<ref>{{Cite news|url=https://www.telegraph.co.uk/news/obituaries/royalty-obituaries/1463546/Frances-Shand-Kydd.html|title=Frances Shand Kydd|journal=The Daily Telegraph|date=2004-06-03|access-date=2019-10-29|language=en-GB|issn=0307-1235}}</ref><ref>{{Cite news|url=https://www.theguardian.com/news/2004/jun/04/guardianobituaries.monarchy|title=Obituary: Frances Shand Kydd|last=Corby|first=Tom|date=2004-06-04|work=The Guardian|access-date=2019-10-29|language=en-GB|issn=0261-3077}}</ref>
* [[Michael Shen Fu-Tsung|Michael Alphonsius Shen Fu-Tsung]]: [[Qing Dynasty]] bureaucrat who toured Europe; he was featured in a painting titled "[[The Chinese Convert]]" by [[Godfrey Kneller]]<ref>{{cite book |pages=[https://books.google.com/books?id=CuguD0Ot02kC&pg=PA105 105]–108 |title=Performing China: Virtue, Commerce, and Orientalism in Eighteenth-Century England, 1660–1760 |first=Chi-ming |last=Yang |date=16 September 2011 |publisher=JHU Press}}</ref>
* [[Frank Sheed]]: Australian-born lawyer, writer, publisher, Catholic apologist and speaker. Raised by a Scottish Presbyterian father, he later converted at age 16, and devoted his life to defending the Catholic faith, mostly from Protestant critics.
* [[William Tecumseh Sherman]]: Civil War General, was born into a Presbyterian family but raised in a Catholic household by foster parents after his father died. Sherman attended the Catholic Church until the outbreak of the Civil War, which destroyed his faith. His wife and children were Catholic and one son, [[Thomas Ewing Sherman]], became a Jesuit priest.
* [[Ralph Sherwin (priest)|Ralph Sherwin]]: one of the [[Forty Martyrs of England and Wales]]<ref>{{cite CE1913 |wstitle=Bl. Ralph Sherwin |first=John Bannerman |last=Wainewright |volume=12}}</ref>
* [[Frederick Charles Shrady]]: American religious artist, primarily of sculpture<ref>{{cite news |url=https://www.nytimes.com/1990/01/22/obituaries/frederick-c-shrady-82-sculptor-best-known-for-religious-figures.html |title=Frederick C. Shrady, 82, Sculptor Best Known for Religious Figures |first=Wolfgang |last=Saxon |date=22 January 1990 |newspaper=NYTimes |access-date=24 March 2017}}</ref>
* [[Angelus Silesius]]: German Catholic priest and physician, known as a mystic and religious poet<ref>{{cite web |url=http://ces.anu.edu.au/events/shaping-modern-europe-angelus-silesius-and-self-creation-modern-man |title=ANU Centre for European Studies |first1=College |last1=Dean |date=17 June 2015 |access-date=24 March 2017}}</ref><ref>{{cite book |pages=[https://books.google.com/books?id=8BNdBYHr_NcC&pg=PA187 187]–189 |title=German Mysticism From Hildegard of Bingen to Ludwig Wittgenstein: A Literary and Intellectual History |first=Andrew |last=Weeks |publisher=SUNY Press}}</ref>
* [[David Silk (priest)|David Silk]]: formerly an Anglican bishop<ref name="BBC11709148" />
* [[Richard Simpson (writer)|Richard Simpson]]: literary writer and scholar; wrote a biography of [[Edmund Campion]]<ref>{{cite CE1913 |wstitle=Richard Simpson |first=Edwin Hubert |last=Burton |volume=14}}</ref>
* [[Edith Sitwell]]: British poet and critic<ref>{{Cite web|url=http://research.hrc.utexas.edu:8080/hrcxtf/view?docId=ead/00370.xml|title=Dame Edith Sitwell: An Inventory of Her Collection at the Harry Ransom Center|access-date=17 April 2013|archive-date=5 June 2010|archive-url=https://web.archive.org/web/20100605083952/http://research.hrc.utexas.edu:8080/hrcxtf/view?docId=ead%2F00370.xml|url-status=dead}}</ref><ref>{{cite web |url=http://www.catholicauthors.com/sitwell.html |title=Edith Sitwell - CatholicAuthors.com |access-date=24 March 2017}}</ref>
* [[Delia Smith]]: English cook and television presenter; her books ''A Feast for Lent'' and ''A Feast for Advent'' involve Catholicism<ref>[https://www.theguardian.com/lifeandstyle/2008/feb/24/foodanddrink.shopping7 Interview in The Guardian]: "But I always thought Catholics were people who had loads of children so they'd get more Catholics, you know – that was my narrow view. Then I went to Mass and it was all in Latin and I didn't understand a word of it, but I thought, Whatever's going on up there is authentic. That is real. So then I started to have instruction and I loved it."</ref>
* [[Timo Soini]]: politician who leads the [[Euroscepticism|Eurosceptic]] [[True Finns]] party; converted during the time of [[Pope John Paul II]]<ref>{{cite news |url=https://www.theguardian.com/world/2011/nov/13/timo-soini-finnish-presidency |title=Far-right Finnish politician Timo Soini bids for presidency |first=Richard |last=Orange |date=12 November 2011 |newspaper=The Guardian |access-date=24 March 2017}}</ref>
*[[Lauren Southern]]: Canadian political activist and YouTuber.<ref>{{Cite web|last=Lombroso|first=Daniel|date=2020-10-16|title=Why the Alt-Right's Most Famous Woman Disappeared|url=https://www.theatlantic.com/politics/archive/2020/10/alt-right-star-racist-propagandist-has-no-regrets/616725/|access-date=2021-12-17|website=The Atlantic|language=en}}</ref>
* [[Reinhard Sorge]]: expressionist playwright who went from [[Friedrich Nietzsche|Nietzschean]] to Catholic<ref>{{cite book |page=[https://books.google.com/books?id=cms8TKJcbVgC&pg=PA71 71] |title=The Nietzsche Legacy in Germany: 1890–1990 |first=Steven E. |last=Aschheim |date=25 February 1994 |publisher=University of California Press}}</ref><ref>Tim Cross, "The Lost Voices of World War I: An International Anthology of Writers, Poets, and Playwrights," University of Iowa Press, 1989. p.  144.</ref>
* [[Wesley Sneijder]]: Dutch soccer player<ref>{{cite web |url=https://www.catholicnewsagency.com/news/20190/dutch-soccer-player-who-scored-winning-goal-against-brazil-is-catholic-convert |title=Dutch soccer player who scored winning goal against Brazil is Catholic convert |access-date=24 March 2017}}</ref>
* [[Etsuro Sotoo]]: Japanese sculptor<ref>{{cite web |url=http://www.gaudiclub.com/ingles/i_partici/sotoo.html |title=Members Section!! Gaudí and Barcelona Club |access-date=24 March 2017}}</ref>
* [[Muriel Spark]]: Scottish novelist, author of ''[[The Prime of Miss Jean Brodie (novel)|The Prime of Miss Jean Brodie]];'' [[Penelope Fitzgerald]] states that Spark said that after her conversion she was better able to, "see human existence as a whole, as a novelist needs to do"<ref>Hal Hager, "About Muriel Spark," Muriel Spark, ''The Prime of Miss Jean Brodie,'' (New York: Harper Perennial, 1999) 141</ref>
* [[Ignatius Spencer]]: son of [[George Spencer, 2nd Earl Spencer]]; became a [[Passionists|Passionist]] priest and worked for the conversion of England to the Catholic faith<ref>{{cite CE1913 |wstitle=The Hon. George Spencer |first=Edwin Hubert |last=Burton |volume=14}}</ref>
* [[Adrienne von Speyr]]: Swiss medical doctor and later Catholic mystic<ref>{{cite web |url=http://www.ignatiusinsight.com/authors/adrienne_von_speyr.asp |title=Doctor, Convert, and Mystic: The Life and Work of Adrienne von Speyr - Ignatius Insight |access-date=24 March 2017 |archive-date=1 May 2014 |archive-url=https://web.archive.org/web/20140501032342/http://www.ignatiusinsight.com/authors/adrienne_von_speyr.asp |url-status=dead }}</ref>
* [[Henri Spondanus]]: French jurist, historian, continuator of the [[Annales Ecclesiastici]], and [[Roman Catholic Diocese of Pamiers|Bishop of Pamiers]]<ref>{{cite CE1913 |wstitle=Henri Spondanus |first=Michael |last=Ott |volume=14}}</ref>
* [[Barbara Stanwyck]]: American actress, model, and dancer
* [[Friedrich Staphylus]]: German theologian who drew up several opinions on reform for the [[Council of Trent]] despite not attending<ref>{{cite CE1913 |wstitle=Friedrich Staphylus |first=Klemens |last=Löffler |volume=14}}</ref>
* [[Ellen Gates Starr]]: a founder of [[Hull House]] who became an [[Oblate]] of the Third Order of St. Benedict<ref>{{Cite web|url=http://www.uic.edu/depts/lib/specialcoll/services/rjd/findingaids/EGStarrf.html|title=Ellen Gates Starr Papers: An inventory of the collection at the University of Illinois at Chicago}}</ref>
* [[Jeffrey N. Steenson]]: first ordinary to the [[Personal Ordinariate of the Chair of Saint Peter]]; former bishop of the [[Episcopal Diocese of the Rio Grande]]<ref>{{cite web |url=http://www.chron.com/news/article/Co-Cathedral-holds-mass-for-Anglican-convert-3307944.php |title=Cardinals install Catholic convert in rarefied post |date=13 February 2012 |access-date=24 March 2017}}</ref>
* [[Edith Stein]]: [[Phenomenology (philosophy)|phenomenologist]] Jewish philosopher who converted to Catholicism and then became a [[Discalced Carmelite]] nun; declared a saint by [[John Paul II]]<ref>[http://www.press.uchicago.edu/cgi-bin/hfs.cgi/00/231663.ctl University of Chicago] "made a spiritual journey from atheism to agnosticism before eventually converting to Catholicism"</ref>
* [[Göran Stenius]]: Swedish-Finnish writer whose ''Klockorna i Rom'' (''The Bells of Rome'') has been praised as a post-war religious novel<ref>{{cite book |url=https://archive.org/details/historyoffinland00geor |url-access=registration |page=[https://archive.org/details/historyoffinland00geor/page/522 522] |quote=stenius. |title=A History of Finland's Literature |first=George C. |last=Schoolfield |date=1 January 1998 |publisher=U of Nebraska Press|isbn=0803241895 }}</ref><ref>{{cite book |page=[https://books.google.com/books?id=UoVDEup2yDgC&pg=PA423 423] |title=A History of Finnish Literature |first=Jaakko |last=Ahokas |date=1 January 1973 |publisher=Taylor & Francis}}</ref>
* [[Nicolas Steno]]: pioneer in geology and anatomy who converted from Lutheranism; became a bishop, wrote spiritual works, and was beatified in 1988<ref>{{cite journal |url=http://www.csmonitor.com/Innovation/Horizons/2012/0111/Nicolas-Steno-The-saint-who-undermined-creationism/(page)/2 |title=Nicolas Steno: The saint who undermined creationism |first=Eoin |last=O'Carroll |date=11 January 2012 |journal=Christian Science Monitor |access-date=24 March 2017 }}</ref><ref>{{cite web |url=http://www.ucmp.berkeley.edu/history/steno.html |title=Nicholas Steno |access-date=24 March 2017}}</ref>
* [[Karl Stern]]: German-Canadian neurologist and psychiatrist; his book ''Pillar of Fire'' concerns his conversion<ref>{{cite book |page=[https://books.google.com/books?id=6wHYgmb1Ra8C&pg=PA184 184] |title=Fall of an Icon: Psychoanalysis and Academic Psychiatry |first=Joel |last=Paris |date=1 January 2005 |publisher=University of Toronto Press}}</ref>
* [[John Lawson Stoddard]]: divinity student who became an agnostic and "scientific humanist"; later converted to Catholicism<ref>{{cite book |page=[https://books.google.com/books?id=WUucYTW6ug0C&dq=%22John+Lawson+Stoddard%22+agnostic&pg=PA390 390] |title=Race: The History of an Idea in America |first=Thomas F. |last=Gossett |date=14 August 1997 |publisher=Oxford University Press}}</ref>
* [[Sven Stolpe]]: Swedish convert and writer<ref>{{cite book |page=[https://books.google.com/books?id=J9Dctlzud-EC&pg=PA522 522] |title=A History of Finland's Literature |first=George C. |last=Schoolfield |date=1 January 1998 |publisher=U of Nebraska Press}}</ref>
* [[R. J. Stove]]: Australian writer, editor, and composer; raised atheist as the son of [[David Stove]]<ref>{{cite web |url=http://www.theamericanconservative.com/dreher/australian-atheist-to-catholic-convert/ |title=Australian atheist to Catholic convert |date=23 October 2011 |access-date=24 March 2017}}</ref>
* [[Su Xuelin]]: Chinese author and scholar whose semi-autobiographical novel ''Bitter Heart'' discusses her introduction to and conversion to Catholicism<ref>{{cite book |page=[https://books.google.com/books?id=tVrk4fJCbq0C&dq=%22&pg=PA198 198] |title=Writing Women in Modern China: An Anthology of Women's Literature from the Early Twentieth Century |first1=Amy D. |last1=Dooling |first2=Kristina M. |last2=Torgeson |date=1 January 1998 |publisher=Columbia University Press}}</ref>
* [[Graham Sutherland]]: English artist who did religious art and had a fascination with Christ's crucifixion<ref>{{cite book |pages=[https://books.google.com/books?id=z3I_wzri-SUC&pg=PA120 120]–121 |title=Cambridge Cultural History of Britain: Volume 9, Modern Britain |first=Boris |last=Ford |date=18 June 1992 |publisher=Cambridge University Press}}</ref>
* [[Halliday Sutherland]]: doctor, tuberculosis pioneer, best-selling author and defendant in the 1923 libel trial, Stopes v. Sutherland. Converted in 1919.<ref>Sutherland, H. (1956). Irish Journey. London: Geoffrey Bles.</ref>
* [[Robert Sutton (martyr)|Robert Sutton]]: English priest and martyr<ref>{{cite CE1913 |wstitle=Ven. Robert Sutton |first=John Bannerman |last=Wainewright |volume=14}}</ref>
* [[Sophie Swetchine]]: Russian salon-holder and mystic<ref>{{cite CE1913 |wstitle=Sophie-Jeanne Soymonof |last=Swetchine |first=Georges Michel Bertrin |volume=14}}</ref>
* [[Susie Forrest Swift]] (Sister M. Imelda Teresa; 1862–1916), American editor, Salvation Army worker, Catholic nun<ref name="Logan-1912">{{cite book |last1=Logan |first1=Mrs John A. |title=The Part Taken by Women in American History |date=1912 |publisher=Perry-Nalle publishing Company |page=536 |via=Wikisource |url=https://en.wikisource.org/wiki/Page:The_part_taken_by_women_in_American_history.djvu/575 |access-date=15 June 2022 |language=en}} {{Source-attribution}}</ref>
* [[Karel Schulz]]: Czech writer

===T===
* [[John B. Tabb]]: American poet, priest, and educator<ref>{{cite CE1913 |wstitle=John Bannister Tabb |first=Thomas Stephen |last=Duggan |volume=14}}</ref>
*[[Hara Takashi]] (原 敬): Japanese politician who served as the [[Prime Minister of Japan]] from 1918 to 1921. Baptized at the age of 17<ref>{{Cite journal|last=Miyamoto|first=Yuki|date=2005|title=Rebirth in the Pure Land or God's Sacrificial Lambs? Religious Interpretations of the Atomic Bombings in Hiroshima and Nagasaki|url=https://www.jstor.org/stable/30233780|journal=Japanese Journal of Religious Studies|volume=32|issue=1|pages=131–159|jstor=30233780|issn=0304-1042}}</ref>
* [[John Michael Talbot]]: American Catholic singer-songwriter-guitarist, once a secular musician in the group [[Mason Proffit]]<ref>{{cite web |url=http://www.christianitytoday.com/ct/2011/juneweb-only/massappeal-june21.html |title=Mass Appeal |access-date=24 March 2017}}</ref><ref>{{cite book |page=[https://books.google.com/books?id=_3jqjSKHKcwC&pg=PA428 428] |title=Encyclopedia of Contemporary Christian Music: Pop, Rock, and Worship: Pop, Rock, and Worship |first=Don |last=Cusic |date=12 November 2009 |publisher=ABC-CLIO}}</ref>
* [[Allen Tate]]: American poet, essayist and social commentator, and [[Poet Laureate Consultant in Poetry to the Library of Congress]]<ref>"...he was an atheist arguing for religious values, a man writing an essay on religion 'in a spirit of irreligion.'... He would not convert to Catholicism for two decades, but his need for religious authority was acute even in 1930." ''[[Allen Tate: Orphan of the South]]'', p. 167, biographer Thomas A. Underwood, Princeton University Press, 2000, {{ISBN|0-691-06950-6}}</ref>
* [[Frances Margaret Taylor]]: founded the [[Poor Servants of the Mother of God]]<ref>{{cite CE1913 |wstitle=Frances Margaret Taylor |first=Francesca Maria |last=Steele |volume=14}}</ref>
* [[Kateri Tekakwitha]]: Catholic saint informally known as "Lily of the Mohawks"<ref>{{cite DCB |first=Henri |last=Béchard |title=Tekakwitha (Tagaskouïta, Tegakwitha), Kateri (Catherine) |volume=1 |url=http://www.biographi.ca/en/bio/tekakwitha_1E.html}}</ref>
* [[Tabariji|Tabaraji of Ternate]]: [[Demographics of Indonesia|Indonesian]] [[sultan]]; converted to Catholicism after 1534; baptised with the name Dom Manuel<ref>{{cite book |url=https://books.google.com/books?id=y99jTbxNbSAC&q=tabariji%20dom%20manuel&pg=PA136 |title=The Cambridge History of Islam: Volume 2A, The Indian Sub-Continent, South-East Asia, Africa and the Muslim West |first1=P. M. |last1=Holt |first2=Peter Malcolm |last2=Holt |first3=Ann K. S. |last3=Lambton |first4=Bernard |last4=Lewis |date=21 April 1977 |publisher=Cambridge University Press|isbn=9780521291378 }}</ref><ref>[http://monindependancefinanciere.com/lenciclopedie/seccion-t/ternate-sultanat.php Ternate Sultanat] {{webarchive|url=https://web.archive.org/web/20160109054511/http://monindependancefinanciere.com/lenciclopedie/seccion-t/ternate-sultanat.php |date=9 January 2016 }}</ref>
* [[Elliot Griffin Thomas]]: third bishop for the [[Roman Catholic Diocese of Saint Thomas|Catholic Diocese of Saint Thomas]]<ref>{{Cite web|url=http://www.nbccongress.org/aboutus/congress-directory/african-american-catholic-bishop-elliott-thomas.asp|archive-url=https://web.archive.org/web/20070707195822/http://www.nbccongress.org/aboutus/congress-directory/african-american-catholic-bishop-elliott-thomas.asp |url-status=dead |title=National Black Catholic Congress profile of Elliot Griffin Thomas|archive-date=7 July 2007}}</ref>
* [[Elizabeth Thompson]]: British battle painter most famous for ''[[The Roll Call]]'', converted along with her family in 1873.
* [[John Sparrow David Thompson]]: first Catholic to be [[Prime Minister of Canada]]<ref>{{cite DCB |first=P. B. |last=Waite |title=Thompson, Sir John Sparrow David |volume=12 |url=http://www.biographi.ca/en/bio/thompson_john_sparrow_david_12E.html}}</ref>
* [[Meletius Tipaldi]]: Eastern Catholic bishop, from Orthodox Christianity.
* [[Alice B. Toklas]]: American-born member of the Parisian avant-garde of the early 20th century; had once been [[Gertrude Stein]]'s lover<ref>{{cite book |first=Janet |last=Malcolm |title=Two Lives: Gertrude and Alice |url=https://books.google.com/books?id=2QPG-EwOI0IC&pg=PA197 |year=2007 |publisher=Melbourne University Publish |isbn=978-0-522-85436-7 |pages=197–}}</ref>
* [[Edith Tolkien]]: Englishwoman, known as the wife and [[Muses|muse]] of novelist [[J. R. R. Tolkien]]. Converted in 1913 in order to marry her husband<ref>{{Cite book|last=Carpenter|first=Humphrey|title=Tolkien: A Biography|publisher=George Allen & Unwin|year=1977|isbn=0-04-928037-6|location=London|pages=73}}</ref>
*[[Mabel Tolkien]]: Mother of English writer, poet, philologist, and academic J. R. R. Tolkien. Converted from being a Baptist in 1900<ref>{{Cite book|last=Carpenter|first=Humphrey|title=J. R. R. Tolkien: A Biography|publisher=Ballantine Books|year=1977|isbn=978-0-04-928037-3|location=New York|pages=31}}</ref>
* [[Meriol Trevor]]: British biographer, novelist and children's writer<ref>{{cite web |url=http://www.lib.rochester.edu/camelot/intrvws/trevor.htm |title=Interview with Meriol Trevor - Robbins Library Digital Projects |access-date=24 March 2017}}</ref><ref>{{cite news |url=https://www.theguardian.com/books/2000/jan/31/booksforchildrenandteenagers.obituaries |title=Meriol Trevor |first=Caitlin |last=Matthews |date=31 January 2000 |newspaper=The Guardian |access-date=24 March 2017}}</ref>
* [[Lu Zhengxiang]]: Chinese Premier and diplomat who became a Benedictine abbot and priest "Pierre-Célestin"<ref>{{cite book |first=Ann |last=Heylen |title=Chronique Du Toumet-Ortos: Looking Through the Lens of Joseph Van Oost, Missionary in Inner Mongolia (1915-1921) |url=https://books.google.com/books?id=WSl5cl_wt24C&pg=PA329 |date=January 2004 |publisher=Leuven University Press |isbn=978-90-5867-418-0 |page=329}}</ref>
* [[Hasekura Tsunenaga]]: Samurai and [[Keichō]] diplomat who toured Europe<ref>Boxer, C.R. "The Christian Century in Japan, 1549–1650", Berkeley, California: University of California Press, 1951. {{ISBN|1-85754-035-2}} (1993 reprint edition).</ref>
* [[Rajah Tupas]]: [[Filipino people|Filipino]] prince and son of the [[Rajah Humabon]]; converted with his family by [[Ferdinand Magellan|Magellan]]<ref>{{cite book |title=Philippine History |url=https://books.google.com/books?id=gUt5v8ET4QYC&pg=PA78 |year=2004 |publisher=Rex Bookstore, Inc. |isbn=978-971-23-3934-9 |pages=78–}}</ref>
* [[Malcolm Turnbull]]: 29th [[Prime Minister of Australia]].
* [[Julia Gardiner Tyler]]: second wife of [[President of the United States|U.S. President]] [[John Tyler]]<ref>{{cite book |first1=Peter R. |last1=Eisenstadt |first2=Laura-Eve |last2=Moss |title=The Encyclopedia of New York State |url=https://books.google.com/books?id=tmHEm5ohoCUC&pg=PA1593 |year=2005 |publisher=Syracuse University Press |isbn=978-0-8156-0808-0 |pages=1593–}}</ref>

===U===
* [[Barry Ulanov]]: editor of ''[[Metronome magazine|Metronome]]'' magazine; a founder of the St. Thomas More Society;<ref>{{cite news |first=Ben |last=Ratliff |title=Barry Ulanov, 82, a Scholar of Jazz, Art and Catholicism |work=The New York Times |date=7 May 2000 |url=https://www.nytimes.com/2000/05/07/nyregion/barry-ulanov-82-a-scholar-of-jazz-art-and-catholicism.html}}</ref> [[Mary Lou Williams]]'s godfather<ref name="rutgers">{{cite web |url=http://newarkwww.rutgers.edu/ijs/mlw/religious_1.html |publisher=Rutgers University |website=Mary Lou Williams: Soul on Soul |title=Religious Conversion |access-date=3 April 2013 |archive-date=30 September 2018 |archive-url=https://web.archive.org/web/20180930011638/http://newarkwww.rutgers.edu/ijs/mlw/religious_1.html |url-status=dead }}</ref>
* [[Kaspar Ulenberg]]: theological writer and translator of the Bible who had previously been Lutheran<ref>{{cite CE1913 |wstitle=Kaspar Ulenberg |first=Friedrich |last=Lauchert |volume=15}}</ref>
* [[Sigrid Undset]]: Norwegian Nobel laureate who had previously been agnostic<ref>{{cite book |url=https://books.google.com/books?id=2wf4xydc5I4C&pg=PA125 |title=Norwegian Women's Writing 1850–1990 |first=Janet |last=Garton |publisher=Bloomsbury Academic |date=1993 |page=125 |isbn=978-0-4859-2001-7}}</ref>

===V===
* [[Sheldon Vanauken]]: author of'' [[A Severe Mercy]]''; a contributing editor of the ''[[New Oxford Review]]''<ref>{{cite web |url=http://www.wabash.edu/magazine/index.cfm?news_id=4190 |title=Magazine |first=Wabash |last=College |access-date=24 March 2017}}</ref>
* [[J. D. Vance]]: 50th [[vice president of the United States]]<ref>{{Cite web|title=Best-Selling "Hillbilly Elegy" Author J.D. Vance Becomes Catholic|url=https://www.ncregister.com/blog/best-selling-hillbilly-elegy-author-j-d-vance-becomes-catholic|access-date=2020-10-15|website=NCR|language=en}}</ref>
* [[Bill Veeck]]: American baseball team owner<ref>{{cite web |url=http://parentseyes.arizona.edu/drachman/1002.html |title=Just Memories, this is not a book*, by Roy P. Drachman, Sr. |access-date=24 March 2017}}</ref>
* [[Johann Emanuel Veith]]: Bohemian Catholic preacher<ref>{{cite CE1913 |wstitle=Johann Emanuel Veith |first=Cölestin |last=Wolfsgruber |volume=15}}</ref>
* [[Jean-Baptiste Ventura]]: soldier, mercenary and adventurer of Jewish origin<ref>{{Cite web|url=https://www.jewishencyclopedia.com/articles/14669-ventura-rubino|title=VENTURA, RUBINO - JewishEncyclopedia.com|website=www.jewishencyclopedia.com}}</ref>
* [[Aubrey Thomas de Vere]]: Victorian era poet and critic. 
* [[Johannes Vermeer]]: Dutch Golden Age painter<ref>{{cite web |url=http://www.adherents.com/people/pv/Jan_Vermeer.html |archive-url=https://web.archive.org/web/20060209003707/http://www.adherents.com/people/pv/Jan_Vermeer.html |url-status=usurped |archive-date=9 February 2006 |title=The religion of Jan Vermeer, painter |access-date=24 March 2017}}</ref>
* [[Adrian Vermeule]]: American legal scholar and law professor at [[Harvard Law School]]<ref>{{Cite web|title=Finding Stable Ground {{!}} Adrian Vermeule|url=https://www.firstthings.com/blogs/firstthoughts/2016/11/finding-stable-ground|access-date=2020-09-28|website=First Things|language=en}}</ref>
* [[Mother Veronica of the Passion]]: founder of the [[Sisters of the Apostolic Carmel]]<ref>{{cite web |url=http://www.apostolic-carmel.org/founders.htm |title=Founders of the Apostolic Carmel Congregation |access-date=24 March 2017}}</ref>
* [[Eva Vlaardingerbroek]]: Dutch political commentator and activist; converted to Catholicism from Protestantism alongside her father in 2023.<ref>{{Cite web |last=Insight |first=Catholic |date=2023-10-28 |title=The Conversion of Eva Vlaandinerbroek |url=https://catholicinsight.com/the-conversion-of-eva-vlaandinerbroek/ |access-date=2024-04-30 |website=Catholic Insight |language=en-US}}</ref>
* [[Karl Freiherr von Vogelsang]]: politician and editor of the Catholic newspaper ''Das Vaterland''<ref>{{cite book |first=Robert S. |last=Wistrich |title=Georg von Schoenerer and the Genesis of Modern Austrian Antisemitism |work=Current Research on Anti-Semitism: Hostages of Modernization |volume=3/2 |editor-first=Herbert Arthur |editor-last=Strauss |publisher=Walter de Gruyter |location=Berlin |date=1993 |page=680 |url=https://books.google.com/books?id=SOFkWX8EC4cC&pg=PA680 |isbn=978-3-1101-3715-6}}</ref>
* [[Simeon Vratanja]]: Eastern Catholic bishop

===W===
* [[Empress Dowager Wang (Southern Ming)|The Empress Dowager Wang]] of the [[Southern Ming|Southern Ming Dynasty]] and mother of the [[Yongli Emperor]]
* [[William George Ward]]: theologian, philosopher, lecturer in mathematics<ref>{{cite DNB |wstitle=Ward, William George |first=James McMullen |last=Rigg |volume=59}}</ref>
*[[E. I. Watkin]]: English writer on poetry, philosophy, aesthetics, history, and religion. Friend of Christopher Dawson. Converted in 1908 from Anglicanism<ref>{{Cite book|last=Pearce|first=Joseph|title=Literary Converts: Spiritual Inspiration in an Age of Unbelief|publisher=Ignatius Press|year=2000}}</ref>
* [[Evelyn Waugh]]: English writer; his ''[[Brideshead Revisited]]'' concerns an aristocratic Catholic family<ref>[http://www.slate.com/articles/arts/books/2012/11/evelyn_waugh_as_catholic_novelist_brideshead_revisited_and_helena.html Slate]:"Conversion," he wrote to Edward Sackville-West, "is like stepping across the chimney piece out of a Looking-Glass world, where everything is an absurd caricature, into the real world God made."</ref>
* [[John Wayne]]: American actor, known for his roles in war films and Westerns; converted to the Catholic Church shortly before his death.<ref>{{cite web |url=http://www.adherents.com/people/pw/John_Wayne.html |archive-url=https://web.archive.org/web/20051119121939/http://www.adherents.com/people/pw/John_Wayne.html |url-status=usurped |archive-date=19 November 2005 |title=The religion of John Wayne, actor |access-date=24 March 2017}}</ref>
* [[Ben Weasel]]: American musician, lead singer and guitarist of the [[punk rock]] band [[Screeching Weasel]]; he converted from Buddhism.<ref>{{cite web |title=Ben Weasel: Te Deum Laudamus for Our Persistent Church |url=https://www.tempi.it/ben-weasel-te-deum-laudamus-for-our-persistent-church/ |website=TEMPI |access-date=9 April 2023 |date=30 December 2013}}</ref>
* [[Yvonne Maria Werner]]: Swedish historian and professor<ref>{{cite news |url=http://www.dagen.se/kultur/hon-vill-ge-en-mer-nyanserad-bild-av-modern-manlighet-1.190218 |work=Dagen |date=22 October 2008 |title=Hon vill ge en mer nyanserad bild av modern manlighet |language=sv}}</ref>
* [[Zacharias Werner]]: German poet, dramatist and preacher<ref>{{cite EB1911 |wstitle=Werner, Friedrich Ludwig Zacharias |volume=28 |pages=523–524}}</ref>
* [[Eustace White]]: one of the [[Forty Martyrs of England and Wales]]<ref>{{cite CE1913 |wstitle=Ven. Eustace White |first=Joseph Louis |last=Whitfield |volume=15}}</ref>
* [[E. T. Whittaker]]: English mathematician who was awarded the cross Pro Ecclesia et Pontifice in 1935<ref>{{cite web |url=http://www-history.mcs.st-andrews.ac.uk/Biographies/Whittaker.html |title=Whittaker biography |access-date=24 March 2017}}</ref>
* [[Ann Widdecombe]]: former British Conservative Party politician; novelist since 2000<ref>{{cite news |url=http://www.newstatesman.com/religion/2010/07/catholic-church-religious |title=Ann Widdecombe – extended interview |first=Alyssa |last=McDonald |work=New Statesman |location=UK |date=19 July 2010 |access-date=28 October 2010}}</ref>
* [[Chelsea Olivia Wijaya]]: Indonesian actress and model; born in the Protestant religion<ref>http://tabloidbintang.com/articles/berita/polah/7726-chelsea-olivia-kini-memeluk-katolik-sama-dengan-glenn Chelsea Olivia Kini Memeluk Katolik, Sama dengan Glenn</ref>
* [[Robert William Wilcox]]: soldier and politician in 19th century [[Hawaii]].
* [[Oscar Wilde]]: Irish writer and poet; converted on his deathbed
* [[Mary Lou Williams]]: [[List of jazz pianists|jazz pianist]]; after conversion, wrote and performed some religious jazz music like ''Black Christ of the Andes''<ref name="rutgers"/><ref>{{cite web |url=http://www.time.com/time/magazine/article/0,9171,870827,00.html |archive-url=https://web.archive.org/web/20080220091720/http://www.time.com/time/magazine/article/0,9171,870827,00.html |url-status=dead |archive-date=20 February 2008 |title=Jazz: The Prayerful One |date=21 February 1964 |work=[[Time (magazine)|Time]] |access-date=24 March 2017}}</ref>
* [[Paul Williams (philosopher)|Paul Williams]]: academic who was raised Anglican and lived as a [[Tibetan Buddhism|Tibetan Buddhist]] for twenty years before becoming Catholic<ref>{{cite web |last=Chiesa |first=Alison |url=http://www.heraldscotland.com/sport/spl/aberdeen/finding-a-rational-religion-a-leading-british-academic-has-reversed-the-usual-trend-by-converting-from-buddhism-to-catholicism-alison-chiesa-hears-about-the-reasoning-behind-his-change-of-religion-1.49534 |title=Finding a rational religion A leading British academic has reversed the usual trend by converting from Buddhism to Catholicism. Alison Chiesa hears about the reasoning behind his change of religion |access-date=24 March 2017}}</ref><ref>{{cite book |url=https://books.google.com/books?id=Yi0oi8C1nQgC |title=Unexpected Way: On Converting from Buddhism to Catholicism |first=Paul |last=Williams |date=6 July 2002 |publisher=Bloomsbury Academic|isbn=9780567088307 }}</ref>
* [[Tennessee Williams]]: American playwright; converted in his later years as his life spiralled downwards
* [[Sigi Wimala]]: [[Demographics of Indonesia|Indonesian]] model and actress, converted to Catholicism after marriage<ref>http://hot.detik.com/read/2009/11/09/150358/1238207/230/sigi-wimala-dinikahi-sutradara-film-di-gereja Sigi Wimala married with Timo Tjahjanto in a Catholic church</ref><ref>http://celebrity.okezone.com/read/2009/11/11/33/274295/nikah-diam-diam-sigi-wimala-digosipkan-hamil Sigi Wimala pregnant before wedding ?</ref>
* [[Lord Nicholas Windsor]]: son of Catholic convert [[Katharine, Duchess of Kent]]; anti-abortion writer<ref>{{cite news |url=https://www.telegraph.co.uk/news/uknews/theroyalfamily/9076668/The-Queens-cousin-says-We-are-prejudice-victims.html |title=The Queen's cousin says: We are prejudice victims |newspaper=The Daily Telegraph|access-date=24 March 2017}}</ref><ref>{{Cite web|url=http://www.firstthings.com/article/2010/11/caesarrsquos-thumb|archive-url=https://web.archive.org/web/20120111044647/http://www.firstthings.com/article/2010/11/caesarrsquos-thumb |url-status=dead |title=First Things article by Lord Nicholas Windsor|archive-date=11 January 2012}}</ref>
* [[Rhoda Wise]]:  American mystic & stigmatist 
* [[Gene Wolfe]]: [[Damon Knight Memorial Grand Master Award|Damon Knight Memorial Grand Master]] in science fiction and fantasy<ref>{{Cite web|url=http://www.firstthings.com/article/2007/03/the-distant-suns-of-gene-wolfe-50|archive-url=https://web.archive.org/web/20130409204214/http://www.firstthings.com/article/2007/03/the-distant-suns-of-gene-wolfe-50 |url-status=dead |title=First Things article on Gene Wolfe|archive-date=9 April 2013}}</ref><ref>{{Cite web |url=http://mysite.verizon.net/~vze2tmhh/gwjbj1.html |title=Interview of Gene Wolfe |access-date=3 April 2013 |archive-url=https://web.archive.org/web/20140725112719/http://mysite.verizon.net/~vze2tmhh/gwjbj1.html |archive-date=25 July 2014 |url-status=dead}}</ref>
* [[John Woodcock (martyr)|John Woodcock]]: among the [[Eighty-five martyrs of England and Wales]]<ref>{{cite CE1913 |wstitle=Ven. John Woodcock |first=John Bannerman |last=Wainewright |volume=15}}</ref>
* [[Thomas Woods]]: American historian and [[Austrian School]] economist; wrote ''How the Catholic Church Built Western Civilization''<ref>{{cite news |url=https://www.washingtonpost.com/wp-dyn/content/discussion/2005/05/23/DI2005052300939.html |title=The Catholic Church: Impacting History |first=Professor Thomas |last=Woods |date=26 May 2005 |newspaper=washingtonpost.com |access-date=24 March 2017}}</ref>
* [[John Ching Hsiung Wu]]: wrote ''Chinese Humanism and Christian spirituality''; has been called "one of China's chief lay exponents of Catholic ideas"<ref>{{cite book |pages=[https://books.google.com/books?id=r3AJFusMHJwC&pg=PA421 419]–420 |title=Biographical Dictionary of Republican China |first1=Howard L. |last1=Boorman |first2=Joseph K. H. |last2=Cheng |date=1 January 1967 |publisher=Columbia University Press}}</ref>
* [[Wu Li]]: Chinese painter and poet who became one of the first Chinese Jesuit priests<ref>{{cite journal |jstor=3087518 |title=Wu Li (1632-1718) and the First Chinese Christian Poetry |journal=Journal of the American Oriental Society |first=Jonathan |last=Chaves |date=1 January 2002 |volume=122 |issue=3 |pages=506–519 |doi=10.2307/3087518}}</ref>
* [[John C. Wright (author)|John C. Wright]]: science fiction author who went from atheist to Catholic;<ref>[http://mostlyfiction.com/authorqa/wright.htm Interview with John C. Wright at "Mostly Fiction"]: "For many years I had been an atheist, and a vehement, argumentative, proselytizing atheist at that. I saw no other possible option for belief for a logical thinker. My recent conversion to Christianity was a miracle, prompted by a supernatural revelation, which has satisfied my skepticism in this area, and saved my life."</ref> wrote Chapter 1 of the book ''Atheist to Catholic: 11 Stories of Conversion'', edited by Rebecca Vitz Cherico<ref>{{cite book |title=Atheist to Catholic: Stories of Conversion |editor-first=Rebecca Vitz |editor-last=Cherico |date=9 March 2011 |publisher=Servant |isbn = 978-0867169577}}</ref>
* [[John Michael Wright]]: portrait painter in the Baroque style<ref>{{cite web |url=http://www.npg.org.uk/collections/search/person/mp07767/john-michael-wright |title=Person - National Portrait Gallery |access-date=24 March 2017}}</ref>

===X===
* [[Xu Guangqi]]: Chinese scholar-bureaucrat, agricultural scientist, astronomer, and mathematician during the Ming Dynasty;<ref>{{cite web |url=http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Xu_Guangqi.html |title=Xu_Guangqi biography |access-date=24 March 2017}}</ref> classed as one of the [[Three Pillars of Chinese Catholicism]]

===Y===
* [[Shigeru Yoshida]] (吉田 茂): Japanese diplomat and politician who served as Prime Minister of Japan from 1946 to 1947 and from 1948 to 1954. He was baptized on his deathbed, having hid his Catholicism throughout most of his life. His funeral was held in [[St. Mary's Cathedral, Tokyo]]<ref>{{Cite web|date=2019-10-20|title=1967: Shigeru Yoshida: Japanese Roman Catholic Prime Minister|url=https://history.info/on-this-day/1967-shigeru-yoshida-japanese-roman-catholic-prime-minister/|access-date=2021-04-28|website=History.info|language=en-US}}</ref><ref>{{Cite web|last=Reynolds|first=Isabel|date=2008-09-25|title=Japanese have first Catholic prime minister, and few know it|url=http://blogs.reuters.com/faithworld/2008/09/25/japanese-have-first-catholic-prime-minister-and-few-know-it/|archive-url=https://web.archive.org/web/20081008051955/http://blogs.reuters.com/faithworld/2008/09/25/japanese-have-first-catholic-prime-minister-and-few-know-it/|url-status=dead|archive-date=8 October 2008|access-date=2021-04-28|website=Reuters Blogs}}</ref>

===Z===
* [[Israel Zolli]]: until converting from Judaism to Catholicism in February 1945, Zolli was the chief rabbi in Rome, Italy's Jewish community from 1940 to 1945

==Former Catholics who had been converts==
* [[Magdi Allam]]: converted in 2008, but left in 2013 to protest what he deemed its "[[globalism]]", "weakness", and "soft stance against [[Islam]]"<ref>{{cite news |title=Magdi Allam, Muslim Convert, Leaves Catholic Church, Says It's Too Weak Against Islam |url=https://www.huffingtonpost.com/2013/03/25/magdi-allam-muslim-convert-leaves-catholic-church_n_2950937.html |access-date=25 March 2013 |newspaper=[[The Huffington Post]] |date=25 March 2013}}</ref><ref>{{cite web |url=http://ncronline.org/blogs/all-things-catholic/there-little-magdi-allam-all-us |title=Is there a little Magdi Allam in all of us? |date=29 March 2013 |access-date=24 March 2017}}</ref>
* [[Audrey Assad]]: American singer-songwriter and contemporary Christian music artist who converted from Evangelical Protestantism to Catholicism in 2007 but in 2021 announced that she was no longer a Catholic or Christian.<ref name="Patheos">{{Cite web |url=http://www.patheos.com/Resources/Additional-Resources/God-Has-Been-a-Relentless-Pursuer-of-My-Heart.html |title=God Has Been a Relentless Pursuer of My Heart |last=Rossi, Toni |date=July 28, 2010 |website=Patheos |access-date=July 19, 2011}}</ref><ref>{{Cite web|url=https://peteenns.com/deconverting-from-certainty-audrey-assad/|title=Interview with Audrey Assad: Deconverting from Certainty|date=April 30, 2018|website=Pete Enns|access-date=March 15, 2020}}</ref><ref>{{Cite tweet |user=audreyassad |number=1367165825694760969 |title=Well, as I announced my facilitation of a new round of Soul Games... |date=March 3, 2021 |access-date=8 March 2022}}</ref>
* [[Margaret Anna Cusack]]: Anglican nun who converted to Catholicism; founded [[The Sisters of St. Joseph of Peace]], and later left due to conflict with a bishop; later became a critic of the [[Hierarchy of the Catholic Church|Church's hierarchy]]<ref>{{cite web |url=http://www.catholicdigest.com/articles/faith/knowledge/2010/11-01/the-nun-of-kenmare |title=Catholic Digest - The Magazine for Catholic Living - The Nun of Kenmare |access-date=24 March 2017 |archive-url=https://web.archive.org/web/20170325113041/http://www.catholicdigest.com/articles/faith/knowledge/2010/11-01/the-nun-of-kenmare |archive-date=25 March 2017 |url-status=dead}}</ref> and the [[Society of Jesus]];<ref name="ByrneColeman2008">{{cite book |first1=James Patrick |last1=Byrne |first2=Philip |last2=Coleman |first3=Jason Francis |last3=King |title=Ireland and the Americas: Culture, Politics, and History: a Multidisciplinary Encyclopedia |url=https://books.google.com/books?id=agfvVQnBu9MC&pg=PA227 |date=1 January 2008 |publisher=ABC-CLIO |isbn=978-1-85109-614-5 |page=227}}</ref> her order survived in the Catholic Church
* [[Rod Dreher]]: writer and blogger; raised [[Methodist]] before converting to Catholicism; converted to [[Eastern Orthodoxy]] in 2006<ref>{{cite web |url=https://www.onfaith.co/onfaith |archive-url=https://web.archive.org/web/20160910150538/https://www.onfaith.co/onfaith/ |url-status=usurped |archive-date=10 September 2016 |title=OnFaith by FaithStreet |access-date=24 March 2017}}</ref>
* [[Henry Ford II]]: converted by Archbishop [[Fulton J. Sheen]]; twice divorced; later ceased practicing the faith, although he received the last rites of the Catholic Church on his deathbed; his funeral was Episcopalian
* [[Ernest Hemingway]]: Converted to marry his second wife, [[Pauline Pfeiffer]].<ref>Meyers (1985), 173, 184</ref> He subsequently divorced Pfeiffer and ceased practicing the faith. He received Catholic graveside services because his family requested it. Also, the fact that his death was a suicide was concealed initially. Ex-Catholics and people who committed suicide were not buried according to Catholic rites.{{citation needed|date=June 2021}}
* [[Ammon Hennacy]]: [[Christian anarchist]] and activist who was Catholic from 1952 to 1965; his essay "On Leaving the Catholic Church" concerns his formal renunciation of the religion<ref>{{cite book |last=Hennacy |first=Ammon |author-link=Ammon Hennacy |chapter=On Leaving the Catholic Church |chapter-url=http://catholicworker.com/ah_leave.htm |title=The Book of Ammon |isbn=9781608990535|date=May 2010 |publisher=Wipf & Stock Publishers |archive-url=https://web.archive.org/web/20100509182220/http://catholicworker.com/ah_leave.htm |archive-date=9 May 2010 }}</ref>
* [[David Kirk (activist)|David Kirk]]: Baptist by upbringing; converted to the [[Melkite Greek Catholic Church]] in 1953 and became a Melkite priest in 1964; became Eastern Orthodox in 2004<ref>{{cite news |url=https://www.nytimes.com/2007/06/04/obituaries/04kirk.html |title=Rev. David Kirk, 72, Crusader for New York City's Disenfranchised, Dies |first=Margalit |last=Fox |date=4 June 2007 |newspaper=NYTimes |access-date=24 March 2017}}</ref>
* [[Otto Klemperer]]: German conductor. Converted to Catholicism, but returned to Judaism near the end of his life.
* [[Robert Lowell]]: [[United States Poet Laureate]] Consultant in Poetry who won the [[Pulitzer Prize for Poetry]] twice; left the faith by 1951<ref>{{cite web |url=http://www.poetryfoundation.org/bio/robert-lowell |title=Robert Lowell |date=24 March 2017 |access-date=24 March 2017}}</ref>
* [[Walter M. Miller, Jr.]]: author of ''[[A Canticle for Leibowitz]]''; converted after his experiences in [[World War II]]; later renounced the faith<ref>[http://public.wsu.edu/~brians/science_fiction/canticle.html Study Guide from Washington State University] {{webarchive|url=https://web.archive.org/web/20130520211740/http://public.wsu.edu/~brians/science_fiction/canticle.html |date=20 May 2013 }}: "Miller remained a Catholic through much his life, though in tension with the Church, (he turned bitterly against it toward the end, as is evident in Saint Leibowitz and the Wild Horsewoman)."</ref><ref>[https://www.orlandosentinel.com/1997/10/09/canticle-author-unsung-even-in-death/ Obituary of Walter M. Miller, Jr]: "In an unconventional letter to the local newspaper in Daytona, the author of one of the greatest modern religious novels made it clear he had left Western religion behind."</ref>
* [[Jean-Jacques Rousseau]]: Franco-Swiss philosopher, writer and political theorist who converted to Catholicism as a young man but later apostated to [[Calvinism]] in 1754<ref>{{cite encyclopedia |url=http://www.britannica.com/eb/article-9109503/Jean-Jacques-Rousseau |encyclopedia=Encyclopædia Britannica |title=Jean-Jacques Rousseau |date=6 December 2015 |first=Brian |last=Duignan |url-access=subscription }}</ref>
*[[Britney Spears]]:  American singer, songwriter, dancer, and actress. Was raised Baptist before converting in 2021 but ceased believing in God by 2022<ref>{{Cite web|date=2021-08-06|title=Britney Spears reveals she's now Catholic as she models mass dress|url=https://www.newsweek.com/britney-spears-reveals-shes-now-catholic-she-models-mass-dress-1616859|access-date=2021-08-06|website=Newsweek|language=en}}</ref><ref>{{cite web|url=https://radaronline.com/p/britney-spears-dont-believe-in-god-son-jayden-2-minute-recording-conservatorship/|title='I Don't Believe In God Anymore': Britney Spears Posts 2-Minute Recording Speaking To Son Jayden As Public Family Fight Intensifies |website=Radar|date=5 September 2022|quote=Like I said, God would not have let this happened to me. I don't believe in god [sic] anymore because of the way my children and my family have treated me. There is nothing to believe in anymore. I'm an atheist y'all.}}</ref>

==See also==
* [[:Category:Converts to Roman Catholicism from Anglicanism|Converts to Catholicism from Anglicanism]]
* [[:Category:Converts to Roman Catholicism from atheism or agnosticism|Converts to Catholicism from atheism and agnosticism]]
* [[List of converts to the Catholic Church from Islam|Converts to Catholicism from Islam]]
* [[:Category:Converts to Roman Catholicism from Judaism|Converts to Catholicism from Judaism]]
{{col-begin}}
{{col-break}}
'''Main articles'''
* [[Religious conversion]]
*[[Deathbed conversion]]
* [[Secondary conversion]]
{{col-break}}
'''Catholicism-related lists'''
* [[List of Roman Catholic Church artists]]
* [[List of Catholic authors]]
* [[List of Catholic philosophers and theologians]]
{{col-end}}

==References==
{{reflist}}

==External links==
* [http://catholic-converts.excerptsofinri.com/ Historic Catholic Converts to Catholicism Produced] by [[EWTN]] hosted by Fr. Charles Connor – Real Audio

{{lists of converts}}

{{DEFAULTSORT:Converts to Catholicism}}
[[Category:Lists of religious converts|Catholicism]]
[[Category:Lists of Roman Catholics]]
[[Category:Converts to Catholicism|*]]