View source for Second lieutenant

{{Short description|Junior commissioned officer military rank}}
{{use dmy dates|date=April 2022}}
{{More citations needed|date=March 2013}}
{{Military ranks | state=expanded}}
'''Second lieutenant''' is a junior [[Officer (armed forces)|commissioned officer]] [[military rank]] in many [[armed forces]].<ref>{{cite news |title=Second lieutenant |url=https://www.merriam-webster.com/dictionary/second%20lieutenant |access-date=1 October 2024 |work=merriam-webstar}}</ref> The lowest officer rank, it is usually placed below [[lieutenant]] or [[first lieutenant]].

==Australia==
The rank of second lieutenant existed in the [[Colonial forces of Australia|military forces of the Australian colonies]] and [[Australian Army]] until 1986.

In the colonial forces, which closely followed the practices of the British military, the rank of second lieutenant began to replace ranks such as [[Ensign (rank)|ensign]] and [[Cornet (military rank)|cornet]] from 1871.

New appointments to the rank of second lieutenant ceased in the regular army in 1986.<ref>{{cite web |title=Archived copy |url=http://www.home.netspeed.com.au/heritagehorse/images/rank%20in%20aust%20army%202003%20extract.pdf |url-status=live |archive-url=https://web.archive.org/web/20150924031103/http://www.home.netspeed.com.au/heritagehorse/images/rank%20in%20aust%20army%202003%20extract.pdf |archive-date=2015-09-24 |access-date=2015-02-17}}</ref> Immediately prior to this change, the rank had been effectively reserved for new graduates from the [[Officer Cadet School, Portsea]] which closed in 1985. (Graduates of the [[Australian Defence Force Academy]] (ADFA) and the [[Royal Military College, Duntroon]] (RMC-D) are commissioned as [[lieutenant]]s.).<ref>{{cite web |title=Commissioned Officer Ranks |url=http://www.army.gov.au/Our-people/Ranks/Officer-Ranks |url-status=dead |archive-url=https://web.archive.org/web/20160808011603/http://www.army.gov.au/Our-people/Ranks/Officer-Ranks |archive-date=8 August 2016 |access-date=18 August 2016 |publisher=Australian Army}}</ref><ref>{{cite web |title=General Service Officer |url=http://www.defencejobs.gov.au/army/jobs/GeneralServiceOfficer/?entryTypeId=13 |url-status=dead |archive-url=https://web.archive.org/web/20160827134039/http://www.defencejobs.gov.au/army/jobs/GeneralServiceOfficer/?entryTypeId=13 |archive-date=27 August 2016 |access-date=18 August 2016 |website=Defence Jobs |publisher=Defence Force Recruiting}}</ref> The rank of second lieutenant is only appointed to officers in special appointments such as training institutions, university regiments and while under probation during training. Trainees undertaking Special Service Officer (SSO) training are appointed at their officer rank prior to undertaking the training (usually as lieutenants or captains). This is different to General Service Officer (GSO) trainees who start off at the rank of officer cadet (ADFA/[[Australian Army Reserve]] officer trainees) or staff cadet ([[Royal Military College, Duntroon]]).<ref>{{Cite web |title=Commissioned Officer Ranks &#124; Australian Army |url=https://www.army.gov.au/our-people/australian-army-rank-structure/commissioned-officer-ranks |url-status=dead |archive-url=https://web.archive.org/web/20190115192133/https://www.army.gov.au/our-people/australian-army-rank-structure/commissioned-officer-ranks |archive-date=2019-01-15 |access-date=2019-01-15}}</ref>

Ranks equivalent to second lieutenant are acting sub-lieutenant in the [[Royal Australian Navy]] and [[pilot officer]] in the [[Royal Australian Air Force]].

==Canada==
The [[Canadian Forces]] adopted the rank with insignia of a single gold ring around the service dress uniform cuff for both army and air personnel upon unification in 1968 until the late 2000s.<ref>Navy marks centennial by reinstating 'executive curl' {{Cite web |date=2 May 2010 |title=Navy marks centennial by reinstating 'executive curl' &#124; CTV News |url=http://www.ctvnews.ca/navy-marks-centennial-by-reinstating-executive-curl-1.508191 |url-status=live |archive-url=https://web.archive.org/web/20141026051858/http://www.ctvnews.ca/navy-marks-centennial-by-reinstating-executive-curl-1.508191 |archive-date=2014-10-26 |access-date=2014-10-26}}</ref><ref>Canadian Army goes back to the future with return to British-style ranks and designations {{Cite web |date=8 July 2013 |title=Canadian Army goes back to the future with return to British-style ranks and designations |url=https://www.thestar.com/news/canada/2013/07/08/canadian_army_goes_back_to_the_future_with_return_to_britishstyle_ranks_and_designations.html |url-status=live |archive-url=https://web.archive.org/web/20170628184822/https://www.thestar.com/news/canada/2013/07/08/canadian_army_goes_back_to_the_future_with_return_to_britishstyle_ranks_and_designations.html |archive-date=2017-06-28 |access-date=2017-09-11 |website=[[Toronto Star]]}}</ref> For a time, naval personnel used this rank but reverted to the Royal Canadian Navy rank of [[Acting Sub-Lieutenant|acting sub-lieutenant]], though the CF green uniform was retained until the mid-1980s. Currently, the [[Canadian Army]] insignia for second lieutenant is a ''pip'' and the [[Royal Canadian Air Force]] insignia for lieutenant is one thick braid. The equivalent rank for the [[Royal Canadian Navy]] is [[acting sub-lieutenant]]. Also known as an Ensign in the Foot Guards units ([[Canadian Grenadier Guards]] & [[Governor General's Foot Guards]]).

==France==
''Sous-lieutenant'' is the most junior commissioned rank in the modern French Army, Airforce and ''[[Gendarmerie]]''. It dates historically from the late XVIth Century in the reign of [[Henry II of France]]. In 1674 this designation replaced that of ensign in the French infantry. By 1791 there were two ''sous-lieutenants'' in each company. After 1781 entry to this rank and beyond required four quartering of nobility - that is for all four grandparents to be recognised members of the aristocracy. The French Revolution substituted election by popular vote and later, under Napoleon, by graduation from officers' military schools or after four years of service as a ''sous-officer'' (NCO).

Until World War I ''sous-lieutenants'' were distinguished by a single gold fringed [[epaulette]] worn on the right shoulder (silver for cavalry).<ref>{{cite book|first=Andre|last=Jouineau|page=11|title=Officers and Soldiers of the French Army 1914|date=2008 |publisher=Amber Books Limited |isbn=978-2-35250-104-6}}</ref> Modern rank insignia is reduced to a single braid stripe on each shoulder strap and (when worn) [[kepi]].<ref>{{cite book|first=Paul|last=Gaujac|page=16|title=Officiers et Soldats de L'Armee Francis 1943-1956|date=2012 |publisher=Histoire & Collections |isbn=978-2-35250-195-4}}</ref>

==Indonesia==
{{main|Indonesian military ranks}}
In [[Indonesia]], "second lieutenant" is known as ''letnan dua'' (''letda'') which is the most junior ranked officer in the [[Indonesian Military]]. Officers in the Indonesian National Armed Forces are commissioned through one of four major commissioning programs. Upon graduation the candidates are promoted to the rank of second lieutenant, thus becoming [[commissioned officer]]s. The four programs are:
* National Armed Forces Academy (''Akademi TNI''): a four-year undergraduate program that emphasizes instruction in the arts, sciences, and professions, preparing men and women to take on the challenge of being officers in the armed forces (Army: [[Indonesian Military Academy|Military Academy]], Navy: [[Indonesian Naval Academy|Naval Academy]], Air Force: [[Indonesian Air Force Academy|Air Force Academy]]);
* [[Officer Candidate School (Indonesian Army)|Officer Candidate School]]: a 28-week program that is attended by senior [[Non-commissioned officer|NCO]]s or [[warrant officer]]s from all services;
* Career Officer Program for college graduates: a 7–8 month program that is designed to recruit civilian professionals (e.g., doctors, dentists, pharmacists, psychologists) into the armed forces;
* Pilot Short Service School: a 34-month program to train pilots to serve in the armed forces.

==New Zealand==
Like many other Commonwealth countries, the rank structures of the [[New Zealand Defence Force]] usually follow British traditions. Hence the [[New Zealand Army]] maintains a rank of second lieutenant and the [[Royal New Zealand Air Force]] has its exact equivalent, [[pilot officer]].

However, the [[Royal New Zealand Navy]] breaks with British tradition and uses the name [[ensign (rank)|ensign]] for its most junior commissioned officer rank (rather than the usual equivalents, such as acting sub-lieutenant or second lieutenant).

== United Kingdom and other Commonwealth countries {{anchor|United Kingdom}} ==
The rank of second lieutenant (2Lt) was introduced throughout the [[British Army]] in 1877 to replace the short-lived rank of [[sub-lieutenant]], although it had long been used in the [[Royal Artillery]], [[Royal Engineers]], [[Fusilier]] and [[The Rifle Brigade|Rifle]] [[regiment]]s. At first the rank bore no distinct insignia. The rank was abolished in 1881 but reintroduced in 1887.<ref>{{cite book |last1=Roper |first1=Michael |title=The Records of the War Office and Related Departments, 1660-1964 |date=1998 |publisher=Public Record Office |isbn=978-1-873162-45-3 |url=https://books.google.com/books?id=aKFRAQAAMAAJ |language=en|page=271}}</ref>  In 1902, a single [[Order of the Bath#Habit and insignia|Bath star]] was introduced; the ranks of [[Lieutenant (British Army and Royal Marines)|lieutenant]] and [[Captain (British Army and Royal Marines)|captain]] had their number of stars increased by one to (respectively) two and three. The rank is also used by the [[Royal Marines]].

New British Army officers are normally commissioned as second lieutenants at the end of their commissioning course at [[RMA Sandhurst]], and continue with specific training with their units. Progression to lieutenant rank usually occurs after about a year. In the British armed forces, ''second lieutenant'' is a rank which is not used as a form of address. Instead a second lieutenant named, for example, ''Smith'' is addressed and referred to as ''Mr Smith'', with the exception that the alternative titles ''ensign'' ([[Foot Guards]]) and ''cornet'' (in the [[Blues and Royals]]<ref>{{Cite web |last=<!--Staff writer(s); no by-line.--> |title=The Household Cavalry Command Structure - Forms of Address |url=http://householdcavalry.info/strcture.html#add |url-status=live |archive-url=https://web.archive.org/web/20160325022043/http://householdcavalry.info/strcture.html#add |archive-date=25 March 2016 |access-date=18 November 2016 |website=householdcavalry.info |publisher=Enasec Ltd |quote=In The Blues And Royals, the most junior Officer rank (equivalent to 2nd Lieutenant) is known as "Cornet".}}</ref> and [[Queen's Royal Hussars]]<ref>{{Cite web |title=The Armed Forces |url=https://www.debretts.com/expertise/forms-of-address/professions/the-armed-forces/}}</ref>) are still used.
In the [[Royal Air Force]], the comparable rank is [[pilot officer]]. The equivalent in the [[Royal Navy]] is [[midshipman]].

== United States ==
[[File:US-O1 insignia.svg|thumb|70px|Second lieutenant insignia of the [[United States Armed Forces]].]]
In the [[United States]], second lieutenant is the normal entry-level rank for most [[Officer (armed forces)|commissioned officers]] in the [[United States Army|Army]], [[United States Marine Corps|Marine Corps]], [[United States Air Force|Air Force]], and [[United States Space Force|Space Force]]. It is equivalent to the rank of [[Ensign (rank)|ensign]] in the [[United States Navy|Navy]], [[United States Coast Guard|Coast Guard]], [[United States Public Health Service Commissioned Corps|Public Health Service Commissioned Corps]], and [[National Oceanic and Atmospheric Administration Commissioned Officer Corps]].

In the Army and Marine Corps, a second lieutenant typically is a [[platoon leader]] who leads a [[platoon]]-size element, usually consisting of 16 to 44 soldiers or marines. A rifle platoon is composed of several [[squad]]s with each squad led by a non-commissioned officer as [[squad leader]]. The second lieutenant is usually assisted by a [[platoon sergeant]] who advises and supports the platoon's commanding officer in leading the unit.

In the Army, the rank bore no [[United States Army officer rank insignia|insignia]] until December 1917, when a gold-colored bar similar to the silver-colored bar of a [[first lieutenant]] was introduced.<ref>{{cite web |title=U.S. Army Officer Grade Insignia:  Second Lieutenant (2LT) O1 |url=https://tioh.army.mil/Catalog/Heraldry.aspx?HeraldryId=15677&CategoryId=9170&grp=2&menu=Uniformed%20Services&ps=24&p=0 |website=[[United States Army Institute of Heraldry]] |quote=Second lieutenants continued to have no insignia until a gold bar was adopted in December 1917. |access-date=2025-05-17}}</ref> In U.S. [[military slang]], the rank is sometimes called "butterbar" or "brown bar" in reference to the insignia,<ref>{{Cite book |last=Dalzell |first=Tom |url=https://books.google.com/books?id=5F-YNZRv-VMC&pg=PA154 |title=The Routledge Dictionary of Modern American Slang and Unconventional English |publisher=Taylor & Francis |year=2009 |isbn=978-0-415-37182-7 |page=154}}</ref> while "shavetail"—a reference to an [[Horse training|unbroken]] mule—is a derisive nickname.<ref>{{cite book |last=Dickson |first=Paul |date=2000 |title=War Slang: American Fighting Words and Phrases from the Civil War to the War in Iraq |url=https://archive.org/details/warslangamerican0000dick/page/32/mode/2up/ |location=New York |publisher=Bristol Park |page=32 |edition=2 |isbn=978-0-88486-407-3 |access-date=2025-05-17}}</ref>

==Bangladesh==
The rank of second lieutenant has existed in the [[Bangladesh Army]] and [[Bangladesh Navy]] since the [[Bangladesh Liberation War |Liberation War]]. It is a rank below [[Lieutenant]] and a rank above [[Master Warrant Officer]]. In the army, a second lieutenant serves as the administrative officer or staff officer in a unit.<ref>{{cite web |title=Ranks & Insignia |url=https://join.army.mil.bd/home/page/ranks-insignia |website=Bangladesh Army}}</ref> In the Navy, the rank of second lieutenant does not exist. Its equivalent is [[Sub-lieutenant]].<ref>{{cite web |title=Rank & Insignia |url=https://joinnavy.navy.mil.bd/Rankandinsignia/ |website=Bangladesh Navy}}</ref>
==Gallery==
===Army===
<gallery class="center">
File:08.RABDF-2LT.svg|Second lieutenant<br />([[Antigua and Barbuda Regiment]])<ref name="Antigua&Barbuda">{{cite web |title=Paratus |author1=Antigua & Barbuda Defence Force |url=http://abdf.gov.ag/wp-content/uploads/2014/04/ABDF_mag_2011.pdf |publisher=Regional Publications Ltd. |access-date=2 March 2020 |pages=12–13 |archive-date=7 June 2022 |archive-url=https://web.archive.org/web/20220607174320/http://abdf.gov.ag/wp-content/uploads/2014/04/ABDF_mag_2011.pdf |url-status=dead }}</ref>
File:Australian Army OF-1a.svg|Second lieutenant<br />([[Australian Army]])<ref name="Australia">{{cite web |title=Badges of rank |url=https://www.defence.gov.au/images/Badges_of_rank.pdf |website=defence.gov.au |publisher=Department of Defence (Australia) |access-date=31 May 2021}}</ref>
File:Bangladesh-army-OF-1a.svg|{{lang|bn|সেকেন্ড লেফটেন্যান্ট}}<br />{{lang|bn-Latn|Sēkēnḍa lēphaṭēn'yānṭa}}<br />([[Bangladesh Army]])<ref name="Bangladesh_Army">{{cite web |title=Ranks & insignia |url=https://joinbangladesharmy.army.mil.bd/home/page/ranks-insignia |website=joinbangladesharmy.army.mil.bd |access-date=11 October 2020}}</ref>
File:07.BDF-2LT.svg|Second lieutenant<br />([[Barbados Regiment]])<ref name="Medals Parade">{{cite web |url=https://www.youtube.com/watch?v=fDeATyAgCWE |title=Barbados Defence Force Medal Ceremony |date=18 Jul 2019 |access-date=29 October 2022 |website=[[YouTube]] |publisher=[[Barbados Defence Force]]}}</ref>
File:Belize-Army-OF-1a.svg|Second lieutenant<br />([[Belize Defence Force]])
File:Botswana-Army-OF-1a.svg|Second lieutenant<br />([[Botswana Ground Force]])<ref name="Botswana">{{cite web |title=Ranks |url=http://www.gov.bw/en/Ministries--Authorities/Ministries/State-President/Botswana-Defence-Force-BDF/About-the-BDF1/Ranks-and-Insignia/ |url-status=dead |archive-url=https://web.archive.org/web/20160826111806/http://www.gov.bw/en/Ministries--Authorities/Ministries/State-President/Botswana-Defence-Force-BDF/About-the-BDF1/Ranks-and-Insignia/ |archive-date=26 August 2016 |publisher=Government of Botswana |access-date=22 September 2016}}</ref>
File:Brazil-Army-OF-1a.svg|{{lang|pt-BR|Segundo tenente}}<br />([[Brazilian Army]])<ref name="Brazil_Army">{{cite web |title=Postos e Graduações - Exército |url=https://www.eb.mil.br/postos-e-graduacoes/-/asset_publisher/DQlwhsMH8YR7/content/exercito?inheritRedirect=false&redirect=https%3A%2F%2Fwww.eb.mil.br%3A443%2Fpostos-e-graduacoes%3Fp_p_id%3D101_INSTANCE_DQlwhsMH8YR7%26p_p_lifecycle%3D0%26p_p_state%3Dnormal%26p_p_mode%3Dview%26p_p_col_id%3Dcolumn-1%26p_p_col_count%3D1 |website=eb.mil.br |publisher=Brazilian Army |access-date=7 May 2021 |language=pt |archive-date=7 May 2021 |archive-url=https://web.archive.org/web/20210507081505/https://www.eb.mil.br/postos-e-graduacoes/-/asset_publisher/DQlwhsMH8YR7/content/exercito?inheritRedirect=false&redirect=https%3A%2F%2Fwww.eb.mil.br%3A443%2Fpostos-e-graduacoes%3Fp_p_id%3D101_INSTANCE_DQlwhsMH8YR7%26p_p_lifecycle%3D0%26p_p_state%3Dnormal%26p_p_mode%3Dview%26p_p_col_id%3Dcolumn-1%26p_p_col_count%3D1 |url-status=dead }}</ref>
File:Canadian Army OF-1a.svg|Second lieutenant<br />{{small|({{langx|fr|Sous-lieutenant}})}}<br />([[Canadian Army]])<ref name="Canada">{{cite web |title=Ranks and appointment |url=https://www.canada.ca/en/services/defence/caf/military-identity-system/rank-appointment-insignia.html |website=canada.ca |date=23 November 2017 |publisher=Government of Canada |access-date=28 May 2021}}</ref>
File:Denmark-Army-OF-(D)-M11.svg|{{lang|da|Sekondløjtnant}}<br />([[Royal Danish Army]])<ref name="Denmark_Army">{{cite web |title=Hærens Gradstegn |url=https://www.forsvaret.dk/globalassets/fko---forsvaret/dokumenter/gradstegn/-plakater_gradstegn_haren_a2_okt_2021-.pdf |website=forsvaret.dk |publisher=[[Danish Defence]] |access-date=22 August 2023 |language=da |date=October 2021}}</ref>
File:Capona Segundo Teniente Ejercito Nacional Dominicano.svg|{{lang|es|Segundo teniente}}<br />([[Dominican Army]])<ref name="DominicanRepublic_Officers">{{cite web |title=Insignias |url=https://www.mide.gob.do/detail.aspx?id=477&sl=96 |website=mide.gob.do |publisher=Ministry of Defense (Dominican Republic) |access-date=28 May 2021 |language=es |archive-date=26 February 2021 |archive-url=https://web.archive.org/web/20210226162440/https://www.mide.gob.do/detail.aspx?id=477&sl=96}}</ref>
File:Fijian-OF-01a.svg|Second lieutenant<br />([[Fiji Infantry Regiment]])
File:07.Gambian Army-2LT.svg|Second lieutenant<br />([[Gambian National Army]])
File:07-Ghana Army-2LT.svg|Second lieutenant<br />([[Ghana Army]])
File:Guyana Defence Force (GDF) 2nd Lieutenant rank insignia.svg|Second lieutenant<br />([[Guyana Defence Force|Guyana Army]])<ref name="Guyana_Army">{{cite book |last1=Merrill |first1=Tim |title=Guyana and Belize: country studies |date=1993 |publisher=Library of Congress |lccn=93010956 |page=138 |url=https://www.loc.gov/resource/frdcstdy.guyanabelizecoun00merr_0/?sp=176&st=text |access-date=3 June 2021}}</ref>
File:13-TNI Army-2LT.svg|{{lang|id|Letnan dua}}<br />([[Indonesian Army]])<ref name="Indonesia">{{cite web |title=Pangkat Harian |url=https://www.tni.mil.id/pages-39-pangkat-harian.html |website=tni.mil.id |access-date=4 June 2021 |archive-url=https://web.archive.org/web/20201124202839/https://www.tni.mil.id/pages-39-pangkat-harian.html |publisher=Indonesian National Armed Forces |archive-date=24 November 2020 |language=id}}</ref>
File:Ireland-Army-OF-1a.svg|Second-lieutenant<br />{{small|({{langx|ga|Dara-lefteanant}})}}<br />([[Irish Army]])<ref name="Ireland_Army">{{cite web |title=Army Rank Markings |url=http://www.military.ie/fileadmin/user_upload/images/Info_Centre/Posters/rank_markings/Army_Rank_Markings_01.png |website=military.ie |publisher=Defence Forces (Ireland) |access-date=26 May 2021 |archive-url=https://web.archive.org/web/20160425021608/http://www.military.ie/fileadmin/user_upload/images/Info_Centre/Posters/rank_markings/Army_Rank_Markings_01.png |archive-date=25 April 2016}}</ref>
File:Jamaica-Army-OF-1a.svg|Second lieutenant<br />([[Jamaica Defence Force|Jamaican Army]])<ref name="Jamaica">{{cite web |title=BADGES OF RANK |url=https://www.jdfweb.com/badges-of-rank/ |website=Official Jamaica Defence Force Website |access-date=16 November 2019 |date=2019|archive-url=https://web.archive.org/web/20200820143541/https://www.jdfweb.com/badges-of-rank/ |archive-date=20 August 2020}}</ref>
File:07. Kenyan Army 2LT.svg|Second lieutenant<br />([[Kenya Army]])<ref name="Kenya">{{cite web |title=KDF Ranks |url=https://mod.go.ke/kdf-ranks/ |website=mod.go.ke |publisher=Ministry of Defence - Kenya |access-date=9 December 2022}}</ref>
File:Blank.svg|Second lieutenant<br />([[Lesotho Army]])<ref name="Lesotho">{{cite web |title=Ranks in the Army |url=http://www.ldf.gov.ls/ranks.html |publisher=Lesotho Defence Force |access-date=5 May 2021}}</ref>
File:Blank.svg|Second lieutenant<br />([[Armed Forces of Liberia|Liberian Ground Forces]])<ref name="Liberia">{{cite web |url=http://www.vertic.org/media/National%20Legislation/Liberia/LR_Defense%20Act%20of%202008.pdf |title=Defense Act of 2008 |date=3 September 2008 |page=8 |access-date=20 November 2017}}</ref>
File:07. Malawi Army - 2LT.svg|Second lieutenant<br />([[Malawi Army]])
File:08.Malta Army-2LT.svg|Second lieutenant<br />{{small|({{langx|mt|Sekond logutenent}})}}<br />([[Armed Forces of Malta|Army of Malta]])<ref name="Malta">{{cite web |title=Rank Insignia |url=https://afm.gov.mt/en/equipment/Pages/Rank-Insignia.aspx |website=afm.gov.mt |publisher=Armed Forces of Malta |access-date=26 May 2021}}</ref>
File:07-Namibia Army-2LT.svg|Second lieutenant<br />([[Namibian Army]])<ref name="Namibia">{{cite magazine |title=Government Notice |magazine=Government Gazette of the Republic of Namibia |date=20 August 2010 |volume=4547 |pages=99–102 |url=http://www.lac.org.na/laws/2010/4547.pdf |access-date=20 December 2021}}</ref>
File:Netherlands-Army-OF-1a.svg|{{lang|nl|Tweede luitenant}}<br />([[Royal Netherlands Army]])<ref name="Netherlands" />
File:New Zealand-Army-OF-1a.svg|Second lieutenant<br />([[New Zealand Army]])<ref name="NewZealand">{{cite web |title=Badges of Rank |url=https://nzdfpop.cwp.govt.nz/assets/Uploads/Resources/21-Update_Rank-Poster-all-services.pdf |website=nzdf.mil.nz |publisher=New Zealand Defence Force |access-date=28 July 2022}}</ref>
File:Nigeria-Army-OF-1a.svg|Second lieutenant<br />([[Nigerian Army]])<ref name="Nigeria">{{cite book |last1=Smaldone |first1=Joseph P. |editor1-last=Metz |editor1-first=Helen Chapin |editor-link=Helen Chapin Metz |title=Nigeria: a country study |series=Area Handbook |date=1992 |publisher=Library of Congress |location=Washington, D.C. |lccn=92009026 |pages=296–297 |edition=5th |url=https://www.loc.gov/resource/frdcstdy.nigeriacountryst00metz_0/?sp=340 |access-date=21 October 2021 |chapter=National Security}}</ref>
File:OF-1(A) Pakistan Army.svg|{{lang|ur|سیکنڈ لیفٹیننٹ}}<br />{{lang|ur-Latn|Saikanḍ lephtinent}}<br />([[Pakistan Army]])<ref name="Pakistan_Army">{{cite web |title=Pakistan Army Ranks with Salary and Insignia |url=https://pakistanforces.com/pakistan-army-ranks/ |website=pakistanforces.com |date=26 January 2021 |access-date=27 May 2021}}</ref>
File:PNGDF Land OF-01a.svg|Second lieutenant<br />([[Papua New Guinea Defence Force|Papua New Guinea Land Element]])
File:07-Rwanda Army-2LT.svg|Second lieutenant<br />([[Rwanda Defence Force|Rwandan Land Forces]])<ref name="Rwanda">{{cite web |title=RDF Insignia |url=https://www.mod.gov.rw/rdf/insignia |website=mod.gov.rw |publisher=Government of the Republic of Rwanda |access-date=12 June 2021}}</ref>
File:Belize-Army-OF-1a.svg|Second lieutenant<br />([[Saint Kitts and Nevis Defence Force|SKN Regiment]])<ref name="SaintKitts&Nevis_Army">{{cite book |title=SAINT CHRISTOPHER AND NEVIS DEFENCE FORCE ACT |date=31 December 2009 |publisher=Government of Saint Kitts and Nevis |pages=110–111}}</ref>
File:Seychelles Army OF-01a (2018).svg|Second lieutenant<br />([[Seychelles People's Defence Force|Seychelles Army]])<ref name="Seychelles">{{cite web |title=Rank structure |url=https://www.spdf.sc/rank-structure/ |website=spdf.sc |publisher=Seychelles People's Defence Forces |access-date=4 June 2021}}</ref>
File:01-RSA-OF01a.svg|Second lieutenant<br />([[Singapore Army]])<ref name="Singapore">{{cite web |title=SAF Rank Insignias |url=https://www.mindef.gov.sg/web/portal/mindef/about-us/saf-rank-insignias |website=mindef.gov.sg |publisher=Ministry of Defence (Singapore) |access-date=7 June 2021}}</ref>
File:SAA-OF-1a.svg|Second lieutenant<br />([[South African Army]])<ref name="SouthAfrica_Army">{{cite web |title=Uniform: Rank insignia |url=http://www.army.mil.za/aboutus/uniform/rankinsignia.htm |website=army.mil.za |publisher=Department of Defence (South Africa) |access-date=29 May 2021 |archive-url=https://web.archive.org/web/20201020110337/http://www.army.mil.za/aboutus/uniform/rankinsignia.htm |archive-date=20 October 2020}}</ref>
File:Sri Lanka-army-OF-1a.svg|Second lieutenant<br />([[Sri Lanka Army]])<ref name="SriLanka_Army">{{cite web |title=Dress Regulation PDF - Part I |url=https://www.army.lk/sites/all/themes/bootstrap/common/images/images2/downloads/Dress-regulation-2019-PART-I.pdf |website=army.lk |publisher=Sri Lanka Army |pages=10-4–10-11 |date=January 2019 |access-date=20 May 2021}}</ref>
File:Nl-landmacht-tweede luitenant.svg|{{lang|nl|Tweede Luitenant}}<br />([[Suriname National Army|Suriname Army]])<ref name="Dyer 1979 - Surinam">{{cite book |last1=Dyer |first1=Gwynne |editor1-last=Keegan |editor1-first=John |title=World armies |date=1979 |publisher=[[Royal Military Academy Sandhurst|Royal Military Academy]] |location=Sandhurst |lccn=79-9217 |page=663 |chapter-url=https://archive.org/details/worldarmies00keeg/page/662/mode/2up |chapter-url-access=registration |access-date=9 March 2022 |chapter=Surinam}}</ref>
File:08-Tanzania Army-2LT.svg|{{lang|sw|Luteni usu}}<br />([[Tanzanian Army]])
File:TaT-Army-OF-1a.svg|Second lieutenant<br />([[Trinidad and Tobago Regiment]])<ref name="Trinidad&Tobago_Officer">{{cite web |title=Rank Chart (Commissioned Officers) |url=http://69.0.195.188/HQ/Our-Organisation/Ranks-Chart-(Commissioned-Officers).aspx |website=69.0.195.188 |publisher=Trinidad and Tobago Defence Force |access-date=27 May 2021 }}{{Dead link|date=November 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
File:Uganda-Army-OF-1a.svg|Second lieutenant<br />([[Uganda People's Defence Force|Ugandan Land Forces]])<ref name="Uganda_Army">{{cite journal |title=Uganda Peoples' Defence Forces Act |journal=The Uganda Gazette |date=18 September 2019 |volume=CXII |issue=46 |pages=1851–1854 |url=https://www.updf.go.ug/Gazette.pdf |access-date=29 May 2021 |publisher=Uganda Printing and Publishing Corporation |archive-date=14 August 2021 |archive-url=https://web.archive.org/web/20210814162155/https://www.updf.go.ug/Gazette.pdf |url-status=dead }}</ref>
File:British Army OF-1a.svg|Second lieutenant<br />([[British Army]])<ref name="UK_Army">{{cite web |title=Rank structure |url=https://www.army.mod.uk/who-we-are/our-people/ranks/ |website=army.mod.uk |publisher=British Army |access-date=27 May 2021}}</ref>
File:US Army O1 (Army greens).svg|Second lieutenant<br />([[United States Army]])<ref name="US_Army">{{Cite web |title=U.S. Army Ranks |url=https://www.army.mil/ranks/ |access-date=27 May 2021 |website=army.mil |publisher=United States Army}}</ref>
File:Blank.svg|{{lang|es|Teniente segundo}}<br />([[National Army (Uruguay)|National Army of Uruguay]])<ref name="Uruguay">{{cite book |editor1-last=Hudson |editor1-first=Rex A. |editor2-last=Meditz |editor2-first=Sandra W. |title=Uruguay: A Country Study |date=1992 |publisher=Federal Research Division, Library of Congress |isbn=0-8444-0737-2 |pages=222–223 |edition=2nd |url=https://www.marines.mil/portals/1/Publications/Uruguay%20Study_3.pdf?ver=2012-10-11-163307-517 |access-date=13 June 2021 |chapter=Chapter 5. National Security}}</ref>
File:Blank.svg|Second lieutenant<br />([[Zambian Army]])
File:Zimbabwe-Army-OF-1a.svg|Second lieutenant<br />([[Zimbabwe National Army]])<ref name="ZimbabweOfficer">{{cite book |last1=Ehrenreich |first1=Frederick |editor1-last=Nelson |editor1-first=Harold D. |title=Zimbabwe: a Country Study |series=Area Handbook |date=1983 |publisher=Library of Congress |location=Washington, D.C. |lccn=83-11946 |page=267 |edition=3rd |url=https://books.google.com/books?id=D3R0AAAAMAAJ |access-date=5 July 2022 |chapter=National Security|isbn=978-0-16-001598-4 }}</ref>
</gallery>

===Marines===
<gallery class="center">
<!-- In alphabetic order of Country please -->
Generic-Navy-O1.svg|{{lang|pt|Segundo-tenente fuzileiro naval}}<br />([[Brazilian Marine Corps]])
13-TNI Navy-ENS.svg|{{lang|id|Letnan dua}}<br />([[Indonesian Marine Corps]])
Maldives Army OF-1a.svg|Second lieutenant<br />{{lang|dv|ލެފްޓިނަންޓް}}<br />([[MNDF Marine Corps|Maldivian Marine Corps]])<ref name="Maldives">{{Cite web |title=ރޭންކް ސްޓްރަކްޗަރ |url=https://mndf.gov.mv/mndf/ranks |archive-url=https://web.archive.org/web/20200229225234/https://mndf.gov.mv/mndf/ranks |archive-date=29 February 2020 |access-date=2 June 2021 |website=mndf.gov.mv |publisher=Maldives National Defence Force |language=dv}}</ref>
Generic-Navy-O1.svg|{{lang|nl|2e Luitenant}}<br />([[Netherlands Marine Corps]])<ref name="Netherlands">{{cite web |date=19 December 2016 |title=De rangonderscheidingstekens van de krijgsmacht |url=https://www.defensie.nl/binaries/defensie/documenten/brochures/2021/01/15/rangen-krijgsmacht/rangonderscheidingstekens.pdf |publisher=Ministry of Defence (Netherlands) |language=nl |access-date=18 March 2021}}</ref>
POR-Navy-OF1b.svg|{{lang|pt|Segundo-tenente fuzileiro}}<br />([[Portuguese Marine Corps]])
British Royal Marines OF-1a.svg|Second lieutenant<br />([[Royal Marines]])<br/>([[United Kingdom]])
US Marine O1 shoulderboard vertical.svg|Second lieutenant<br />([[United States Marine Corps]])<ref name="USMC">{{Cite web |title=Ranks |url=https://www.marines.mil/Ranks/ |access-date=13 June 2021 |website=marines.mil |publisher=U.S. Marine Corps}}</ref>
</gallery>

===Navy===
<gallery class="center">
File:Generic-Navy-O1.svg|{{lang|pt-BR|Segundo-tenente}}<br />([[Brazilian Navy]])<ref name="Brazil_Navy">{{Cite web |date=11 July 2017 |title=Postos e Graduações |url=https://www.marinha.mil.br/postos-e-graduacoes |access-date=7 May 2021 |website=marinha.mil.br |publisher=Brazilian Navy |language=pt}}</ref>
File:Blank.svg|{{lang|pt|Segundo-tenente}}<br />([[Military of Guinea-Bissau|Navy of Guinea-Bissau]])
File:13-TNI Navy-ENS.svg|{{lang|id|Letnan dua}}<br />([[Indonesian Navy]])<ref name="Indonesia" />
File:A VNN-OF-1A.svg|Second lieutenant<br />([[Kenya Navy]])
File:Malawi Navy - OF-1a.svg|Second lieutenant<br />([[Malawian Defence Force|Malawi Navy]])
File:Maldives-Navy-OF-1b.svg|Second lieutenant<br />{{lang|dv|ލެފްޓިނަންޓް}}<br />([[Maldivian Coast Guard]])
File:Malta-navy-OF-1a.svg|Second lieutenant<br />{{lang|mt|Sekond logutenent}}<br />([[Maritime Squadron of the Armed Forces of Malta|Maritime Squadron of Malta]])<ref name="Malta" />
File:Generic-Navy-O3.svg|{{lang|pt|Segundo-tenente}}<br />([[Mozambique Defence Armed Forces|Mozambique Naval Command]])
File:Peru-Navy-OF-1b.svg|{{lang|es|Teniente segundo}}<br />([[Peruvian Navy]])<ref name="Peru">{{Cite web |title=Grados Militares |url=https://www.ccffaa.mil.pe/cultura-militar/grados-militares/ |access-date=29 May 2021 |website=ccffaa.mil.pe |publisher=Joint Command of the Armed Forces of Peru |language=es}}</ref>
File:POR-Navy-OF1b.svg|{{lang|pt|Segundo-tenente}}<br />([[Portuguese Navy]])<ref name="Portugal_Navy">{{Cite web |title=Os Postos |url=https://www.marinha.pt/pt/a-marinha/Paginas/postos.aspx |access-date=26 February 2021 |website=marinha.pt |language=pt}}</ref>
File:STeP OF-1b.svg|{{lang|pt|Segundo-tenente}}<br />([[Armed Forces of São Tomé and Príncipe|Coast Guard of São Tomé and Príncipe]])
File:Seychelles Coast Guard OF-01a (2018).svg|Second lieutenant<br />([[Seychelles Coast Guard]])<ref name="Seychelles" />
File:01-RSN-OF01a.svg|Second lieutenant<br />([[Republic of Singapore Navy]])<ref name="Singapore" />
File:POR-Navy-OF1b.svg|{{lang|pt|Segundo-tenente}}<br />([[Timor Leste Defence Force#Naval Component|Timor-Leste Naval Component]])
</gallery>

===Air Force===
<gallery class="center">
File:07.Botswana Air Force-2LT.svg|Second lieutenant<br />([[Botswana Defence Force Air Wing]])<ref name="Botswana" />
File:Segundo-TenenteFAB.gif|{{lang|pt-BR|Segundo-tenente}}<br />([[Brazilian Air Force]])<ref name="Brazil_AirForcee">{{Cite web |title=Postos e Graduações |url=https://www.fab.mil.br/postosegraduacoes |access-date=7 May 2021 |website=fab.mil.br |publisher=Brazilian Air Force |language=pt}}</ref>
File:Canadian RCAF OF-1a.svg|Second lieutenant<br />{{lang|fr-CA|Sous-lieutenant}}<br />([[Royal Canadian Air Force]])<ref name="Canada" />
File:RDAF 2nd Lt.svg|{{lang|da|Sekondløjtnant}}<br />([[Royal Danish Air Force]])<ref name="Denmark_AirForce">{{Cite web |date=2021 |title=Flyvevåbnets Gradstegn |url=https://forsvaret.dk/globalassets/fko---forsvaret/dokumenter/gradstegn/-flyvevabnets_gradstegn_2021-.pdf |access-date=26 May 2021 |website=[[forsvaret.dk]] |publisher=Danish Defence |language=da}}</ref>
File:Capona segundo teniente fuerza aerea.svg|{{lang|es|Segundo teniente}}<br />([[Dominican Air Force]])<ref name="DominicanRepublic_Officers" />
File:13-TNI Air Force-2LT.svg|{{lang|id|Letnan dua}}<br />([[Indonesian Air Force]])<ref name="Indonesia" />
File:Ireland-AirForce-OF-1a.svg|Second lieutenant<br />{{lang|ga|Dara-leifteanant}}<br />([[Irish Air Corps]])<ref name="Ireland_AirForce">{{Cite web |title=Air Corps Rank Markings |url=http://www.military.ie/fileadmin/user_upload/images/Info_Centre/Posters/rank_markings/Air_Corps_Ranks_01.png |archive-url=https://web.archive.org/web/20160425021558/http://www.military.ie/fileadmin/user_upload/images/Info_Centre/Posters/rank_markings/Air_Corps_Ranks_01.png |archive-date=25 April 2016 |access-date=26 May 2021 |website=military.ie |publisher=Defence Forces (Ireland)}}</ref>
File:Jamaican Air Force OF-1A.svg|Second lieutenant<br />([[Jamaica Defence Force Air Wing]])
File:07. Kenyan Air Force 2LT.svg|Second lieutenant<br />([[Kenya Air Force]])
File:Blank.svg|Second lieutenant<br />([[Lesotho Defence Force|Lesotho Air Squadron]])
File:Blank.svg|Second lieutenant<br />([[Armed Forces of Liberia|Liberian Air Wing]])<ref name="Liberia" />
File:Malawi Air Force - OF-1a.svg|Second lieutenant<br />([[Malawian Defence Force|Malawi Air Force]])
File:Netherlands-AirForce-OF-1a.svg|{{lang|nl|Tweede-luitenant}}<br />([[Royal Netherlands Air Force]])<ref name="Netherlands" />
File:PNGDF AF 2LT.png|Second lieutenant<br />([[Papua New Guinea Defence Force|Papua New Guinea Air Element]])
File:PAF 2LT Svc.svg|Second lieutenant<br />([[Philippine Air Force]])<ref name="Philippines_AirForce">{{Cite web |title=Ranks |url=https://www.paf.mil.ph/ranks |archive-url=https://web.archive.org/web/20201018022326/https://www.paf.mil.ph/ranks |archive-date=18 October 2020 |access-date=27 May 2021 |website=paf.mil.ph |publisher=Philippine Air Force}}</ref>
File:07-Rwanda Air Force-2LT.svg|Second lieutenant<br />([[Rwandan Air Force]])<ref name="Rwanda" />
File:01-RSAF-OF01a.svg|Second lieutenant<br />([[Republic of Singapore Air Force]])<ref name="Singapore" />
File:Seychelles Air Force OF-01a (2018).svg|Second lieutenant<br />([[Seychelles People's Defence Force|Seychelles Air Force]])<ref name="Seychelles" />
File:SAAF-OF-1a.svg|Second lieutenant<br />{{lang|af|Tweede luitenant}}<br />([[South African Air Force]])<ref name="SouthAfrica_AirForce">{{Cite web |title=Rank Insignia |url=http://www.af.mil.za/uniform/rank_ins.html |archive-url=https://web.archive.org/web/20190101003057/http://www.af.mil.za/uniform/rank_ins.html |archive-date=1 January 2019 |access-date=29 May 2021 |website=af.mil.za |publisher=Department of Defence (South Africa)}}</ref>
File:08-Tanzania Air Force-2LT.svg|Second lieutenant<br />([[Tanzania Air Force Command]])
File:Uganda-AirForce-OF-1a.svg|Second lieutenant<br />([[Uganda Air Force]])
File:Uruguay-AirForce-OF-1b.svg|{{lang|es|Teniente segundo}}<br />([[Uruguayan Air Force]])<ref name="Uruguay" />
File:US Air Force O1 shoulderboard.svg|Second lieutenant<br />([[United States Air Force]])<ref name="US_Airforce">{{Cite web |date=25 June 2021 |title=Air Force Instruction 36-2903 |url=https://static.e-publishing.af.mil/production/1/af_a1/publication/afi36-2903/afi36-2903.pdf |publisher=Department of the Air Force |page=108 |access-date=14 August 2021 |archive-date=14 August 2021 |archive-url=https://web.archive.org/web/20210814005058/https://static.e-publishing.af.mil/production/1/af_a1/publication/afi36-2903/afi36-2903.pdf |url-status=dead }}</ref>
File:Blank.svg|Second lieutenant<br />([[Zambian Air Force]])
</gallery>

===Space Force===
<gallery class="center">
File:US_Space-force_O1.svg|Second lieutenant<br />([[United States Space Force]])
</gallery>

== See also ==
* [[British Army officer rank insignia]]
* [[Comparative military ranks]]
* [[Cornet (military rank)]]
* [[United States Army officer rank insignia|U.S. Army officer rank insignia]]
* [[Military ranks of Ukraine]]
* [[Podporuchik]]
* [[Unterleutnant]]
* [[Leutnant]]
* [[South African military ranks]]

== References ==
{{reflist}}

{{UK officer ranks}}
{{Canadian officer ranks}}
{{US officer ranks|collapse=collapsed}}

[[Category:Military ranks of Canada]]
[[Category:Military ranks of Australia]]
[[Category:Pakistan Army ranks]]
[[Category:Military ranks of the British Army]]
[[Category:Military ranks of the Commonwealth]]
[[Category:Military ranks of the Royal Marines]]
[[Category:Military ranks of the United States Army]]
[[Category:Officer ranks of the United States Air Force]]
[[Category:Officer ranks of the United States Space Force]]
[[Category:Military ranks of the United States Marine Corps]]
[[Category:Military ranks of Singapore]]
[[Category:Military ranks of the Nepali Army]]