is a Japanese swimmer. She won a silver medal in the 200m breaststroke event and a bronze medal in the 100m breaststroke at the 2012 Summer Olympics, as well as a silver in the women's 4 x 100 m medley relay for Japan. She also swam in the 100 m breaststroke and 4 x 100 m medley relay at the 2016 Summer Olympics. She currently belongs to Yamanashi Gakuin University swimming club.