Kosei Abe (阿部 光生, Abe Kōsei, born March 6) is a Japanese voice actor (seiyu) from Oita Prefecture, Japan. His former stage name was Kosei Abe (阿部 昂生, Abe Kōsei). He was affiliated with B-Box until April 30, 2025. His hobbies are singing, dancing, and collecting red objects. He is 1.74 m tall.