Chihiro Muramatsu (村松千裕, Muramatsu Chihiro, born 22 May 1998) is a Japanese tennis player. On 24 February 2020, Muramatsu achieved a career-high singles ranking of world No. 205. On 2 April 2018, she peaked at No. 303 in the WTA doubles rankings. Muramatsu has won one singles title and three doubles titles on the ITF Circuit. She made her WTA Tour main-draw debut at the 2018 Japan Open, after receiving a wildcard for the women's doubles tournament, partnering Hiroko Kuwata.