Graham Clinton Koonce (born May 15, 1975) is a former Major League Baseball first baseman. In 2007, he played for the Kansas City Royals' Triple-A club, the Omaha Royals. In 2003, he played for the Oakland Athletics. He was selected by the Detroit Tigers in 60th Round of 1993 amateur entry draft. Koonce played his first professional season with their Rookie league Bristol Tigers in 1994.
Graham Koonce
| Given name: | Graham Clinton Koonce |
| Nicknames: | None |
| Primary Pos: | Firstbase |
| Hght/Wght: | 6'4" / 220 lbs |
| Bats/Throws: | L / L |
| Born: | May 15, 1975 in El Cajon, CA |
| Age: | 50 |
| Debut: | Sep 20, 2003 |