Ōtsuka

• Ai Otsuka Japanese pop singer from the Kansai region
• Akinori Otsuka Japanese baseball player
• Akio Ōtsuka Japanese voice actor, son of Chikao Ohtsuka
• Chihiro Otsuka Japanese actress
• Chikao Ōtsuka Japanese voice actor, father of Akio Ohtsuka
• Hirofumi Otsuka, Japanese speed skater
• Hironori Ōtsuka the creator and first Grand Master of the Japanese karate style Wado-ryu
• Hōchū Ōtsuka Japanese voice actor
• James Otsuka famous war tax resister
• Julie Otsuka Japanese American author
• Michael Otsuka London-based academian
• Miyako Ōtsuka, Japanese basketball player
• Miyu Otsuka, Japanese swimmer
• Motoyuki "Morrie" Ōtsuka Japanese singer-songwriter
• Tadashi Ohtsuka Japanese badminton player
• Takeo Otsuka Japanese professional wrestler also known as Men's Teioh or Terry Boy
• Yasuo Ōtsuka former animator who worked with Toei Animation
• Yuto Otsuka, Japanese basketball player