| Satoshi Koga 古賀 聡 | |
| Fullname: | Satoshi Koga |
| Birth Date: | 1970 2, df=yes |
| Birth Place: | Yokohama, Kanagawa, Japan |
| Position: | Midfielder |
| Youthyears1: | 1985–1987 |
| Youthclubs1: | Waseda Jitsugyo High School |
| Youthyears2: | 1988–1991 |
| Youthclubs2: | Waseda University |
| Years1: | 1992–1996 |
| Clubs1: | Kashima Antlers |
| Caps1: | 30 |
| Goals1: | 2 |
| Years2: | 1997 |
| Clubs2: | Brummell Sendai |
| Caps2: | 24 |
| Goals2: | 0 |
| Years3: | 1998–2000 |
| Clubs3: | Sanfrecce Hiroshima |
| Caps3: | 35 |
| Goals3: | 0 |
| Totalcaps: | 89 |
| Totalgoals: | 2 |
is a former Japanese football player.
Koga was born in Yokohama on 12 February 1970. After graduating from Waseda University, he joined the Kashima Antlers in 1992. He played mainly as an offensive midfielder and forward. He moved to the Japan Football League club Brummell Sendai in 1997. He played in many matches and moved to Sanfrecce Hiroshima in 1998. He retired at the end of the 2000 season.
| Club performance | League | Cup | League Cup | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Club | League | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |
| Japan | League | Emperor's Cup | J.League Cup | Total | |||||||
| 1992 | Kashima Antlers | J1 League | colspan="2" | - | 0 | 0 | 5 | 0 | 5 | 0 | |
| 1993 | 15 | 1 | 1 | 0 | 5 | 0 | 21 | 1 | |||
| 1994 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| 1995 | 15 | 1 | 0 | 0 | colspan="2" | - | 15 | 1 | |||
| 1996 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| 1997 | Brummell Sendai | Football League | 24 | 0 | 2 | 0 | 2 | 0 | 28 | 0 | |
| 1998 | Sanfrecce Hiroshima | J1 League | 13 | 0 | 3 | 0 | 2 | 0 | 18 | 0 | |
| 1999 | 6 | 0 | 4 | 0 | 4 | 0 | 14 | 0 | |||
| 2000 | 16 | 0 | 0 | 0 | 2 | 0 | 18 | 0 | |||
| Total | 89 | 2 | 10 | 0 | 20 | 0 | 119 | 2 | |||