Koga (surname)
Kōga, Koga, Kouga or Kohga is a Japanese surname. Notable people with the surname include:
- Aoi Koga, Japanese voice actress
- Harue Koga, Japanese painter active in the Taishō period
- Hiroyasu Koga, Yukio Mishima's kaishakunin
- Issei Koga, for Democratic Party of Japan
- Junya Koga, Japanese swimmer
- Kazunari Koga, Japanese footballer
- Koichiro Koga, Japanese volleyball player
- Makoto Koga, Japanese Liberal Democratic Party politician
- Mary Koga, Japanese-American photographer and social worker in Chicago
- Masahiro Koga, Japanese footballer
- Masao Koga, was a Japanese composer, guitarist and pop musician
- Mineichi Koga, Fleet Admiral during World War II
- Mitsuki Koga, actor in martial arts films
- Sarina Koga, Japanese volleyball player
- Satoshi Koga, Japanese footballer
- Seiji Koga, Japanese footballer
- Tadayoshi Koga, pilot of the Akutan Zero in World War II
- Taichirō Koga, Japanese volleyball player
- Takuma Koga, Japanese footballer
- Toshihiko Koga, a judo world champion
- Toshinori Koga, Japanese boxer
- Yukiko Koga, anthropologist
- Yun Kōga, Japanese manga artist
