Reiko Tosa (b. 1976), born in Ehime prefecture, is a long-distance runner who specializes in marathon races. With a personal best time of 2h22m46s, she won the Nagoya (2004) and Tokyo (2006) International Women's Marathon events. Tosa also won the fifth place in the Olympic Games in Athens in 2004.
Discovered on 18-9-1995 in Kuma Kogen by Nakamura, A.