Akio Otsuka is a Japanese voice actor affiliated with Mausu Promotion. He is the son of fellow voice actor Chikao Otsuka. In February 2005, he married voice actress Yoko Soumi, but later divorced her in 2009.
- Known For: Acting
- Birthday: 1959-11-24
- Place of Birth: Tokyo, Japan
- Also Known As: Akio Otuka, Akio Ootsuka, 大塚 明夫, Akio Ôtsuka, Akio Ōtsuka , Akio Ohtsuka, おおつか あきお, 大塚明夫, 오오츠카 아키오, 大冢明夫