Tomoko Yoshihara (吉原知子 Yoshihara Tomoko, born February 4, 1970 in Hokkaido) is a former volleyball player from Japan, who competed at the 2004 Summer Olympics in Athens, Greece. There she ended up in fifth place with the Japan women's national team. Yoshihara played as a middle-blocker. She also competed at the 1992 and the 1996 Summer Olympics, and was named Best Server at the 1994 FIVB Women's World Championship.