Ōtsuka
Ōtsuka is a Japanese surname. Alternative transliterations include Otsuka and Ohtsuka. Notable people with the surname include:
- Ai Otsuka, Japanese pop singer from the Kansai region
- Akinori Otsuka, Japanese baseball player
- Akio Ōtsuka, Japanese voice actor, son of Chikao Ohtsuka
- Alexander Otsuka , Japanese professional wrestler and mixed martial artist
- Chihiro Otsuka, Japanese actress
- Chikao Ohtsuka, Japanese voice actor, father of Akio Ōtsuka
- Gen Ōtsuka, Japanese photographer
- Hirofumi Otsuka, Japanese speed skater
- Hironori Ōtsuka, creator and first Grand Master of the Japanese karate style Wado-ryu
- Hōchū Ōtsuka, Japanese voice actor
- James Otsuka, war tax resister
- Julie Otsuka, Japanese American author
- Ken Otsuka, Japanese animator storyboarded Japanese anime My Hero Academia
- Michael Otsuka, American political philosopher
- Miyako Ōtsuka, Japanese basketball player
- Miyu Otsuka, Japanese swimmer
- Motoyuki "Morrie" Ōtsuka, Japanese singer-songwriter
- Noyuri Otsuka, Japanese Christian scholar and researcher
- Tadashi Ohtsuka, Japanese badminton player
- Tarō Ōtsuka, Japanese garden designer: see T. R. Otsuka
- T. R. Otsuka, Japanese garden designer
- Tatsunori Otsuka, Japanese volleyball player
- Takeo Otsuka, Japanese professional wrestler also known as Men's Teioh or Terry Boy
- Takeru Otsuka, Japanese snowboarder
- Yasuo Ōtsuka, animator
- Yuto Otsuka, Japanese basketball player
- Sae Ōtsuka, Japanese voice actor, singer