Takagi

is a Japanese surname meaning "tall tree". Notable people with the surname include:

• Akimitsu Takagi (1920–1995), Japanese crime fiction writer
• Jon Mamoru Takagi (1942–1984), American martial arts instructor
• , Japanese footballer
• Hinako Takagi (born 1989), Japanese composer and pianist
• Hitoshi Takagi (1925–2004), Japanese voice actor
• , Japanese professional wrestler
• Kaietsu Takagi (1883–1957), Japanese photographer
• Kazumichi Takagi (born 1980), Japanese football player
• Keizō Takagi (born 1941), Japanese writer, journalist and educator
• , Japanese ice hockey player
• Maria Takagi (born 1978), Japanese former AV star and TV actress
• , the Japanese name of South Korean president Park Chung-hee (1917–1979)
• Miho Takagi (born 1994), Japanese speed skater
• Mototeru Takagi (1941–2002), Japanese free jazz musician
• Nana Takagi (born 1992), Japanese speed skater
• Paul Takagi (1923–2015), American sociologist
• Sadao Takagi (born 1932), Japanese entomologist
• Saya Takagi (born 1963), Japanese actress
• , Japanese professional wrestler
• , Japanese professional wrestler and promoter known as Sanshiro Takagi
• Takeo Takagi (1882–1944), Japanese vice admiral in World War II
• Takuya Takagi, Japanese football player and football manager
• Teiji Takagi (1875–1960), Japanese mathematician
• Toranosuke Takagi (born 1974), Japanese race car driver
• Wataru Takagi (born 1966), Japanese voice actor

Fictional characters

• , titular character of the manga series Teasing Master Takagi-san
• , a character in the manga series Tomie
• , a character in the manga series Bakuman
• , a character in the manga series Highschool of the Dead