Mai Kiyama (Japanese: 帰 山 麻 衣; born 16 January 1991) is a Japanese former long track speed skater, who was active between 2000 and 2018. Kiyama represented her nation at international competitions. As a junior she won the silver medal at the 2009 World Junior Speed Skating Championships in the team pursuit event. At elite level, she won the bronze medal at the 2017 Asian Winter Games in the 5000 metres event. She also competed at other international competitions, including at ISU Speed Skating World Cups.