Mayumi Ohkutsu

Mayumi Ohkutsu (大久津 真由美; born July 12, 1968, in Obihiro, Hokkaido, Japan as Mayumi Seguchi; also known as Mayumi Seguchi-Ohkutsu, Mayumi Seguchi-Okutsu) is a Japanese curler, a five-time (1991, 1993, 1995, 1996, 1997) and a six-time Japan women's champion (1991, 1992, 1993, 1996, 1997, 1998).

She played for Japan at the 1998 Winter Olympics, where the Japanese team finished in fifth place. Also, she competed at the 1992 Winter Olympics, where curling was a demonstration sport and the Japanese team finished in eighth place.