Keiichiro Matsui (松居 圭一郎, Matsui Kei'ichirō, born 5 June 1994) is a Japanese badminton player who affiliated with the Hitachi team.

[1] Born in Ishikawa, he graduated from the Tomioka senior high school, and later educated at the Nippon Sport Science University.

[2] He was part of the national junior team that won the gold medal at the 2012 Asian Junior Championships,[3][4] and the silver medal at the 2012 World Junior Championships.

[5][6] The BWF World Tour, which was announced on 19 March 2017 and implemented in 2018,[7] is a series of elite badminton tournaments sanctioned by the Badminton World Federation (BWF).

This biographical article relating to Japanese badminton is a stub.