Satoshi Koga (古賀 聡, Koga Satoshi, born 12 February 1970) is a former Japanese football player.
After graduating from Waseda University, he joined the Kashima Antlers in 1992.
He moved to the Japan Football League club Brummell Sendai in 1997.
He played in many matches and moved to Sanfrecce Hiroshima in 1998.
This biographical article related to a Japanese association football midfielder born in the 1970s is a stub.