| Tomoko Yoshihara | |
| Birth Date: | 4 February 1970 |
| Birth Place: | Uryū District, Hokkaido, Japan |
| Hometown: | Tokyo |
| Spike: | 305 cm |
| Block: | 295 cm |
| Weight: | 63kg (139lb) |
| Position: | Middle blocker |
| Teamnumber: | 10 (1992) 5 (1996) 1 (2004) |
| Nationalyears: | 1990–2004 |
Tomoko Yoshihara (吉原知子 Yoshihara Tomoko, born 4 February 1970) is a former volleyball player from Japan who competed at the 1992, 1996, and 2004 Summer Olympics. Yoshihara captained the 2004 Olympic squad.[1] She was named Best Server at the 1994 FIVB World Championship in Brazil, where she finished in seventh place.[2] She won a bronze medal at the 1994 Goodwill Games in Saint Petersburg.[3] Yoshihara played as a middle blocker.
In June 2015, Yoshihara was named the head coach of the JT Marvelous volleyball team.
After retiring from playing volleyball in 2006, Yoshihara completed a master's programme at the University of Tsukuba.