Hiroyasu Koga (Japanese: 古賀浩靖 Koga Hiroyasu, born 15 August 1947) is a former Tatenokai member and kaishakunin responsible for the decapitations of Yukio...

On 2 September in Tokyo, Morita and "Chibi Koga" recruited Hiroyasu Koga (古賀浩靖) ("Furu" Koga), who was a Tatenokai member also, and he met Mishima to hear...

Hidehiko Koga (古賀 英彦, 1899-1982), Japanese baseball player Hiroyasu Koga (古賀 浩靖, born 1947), Yukio Mishima's kaishakunin Issaku Koga (古賀 逸策, 1899-1982)...

Hiroyasu Kawakatsu (川勝 博康, born 1975), Japanese footballer Hiroyasu Koga (古賀 浩靖), member of Tatenokai Hiroyasu Sasaki (佐々木 博康), Japanese mime Hiroyasu Shimizu...