Chihiro Muramatsu (????, Muramatsu Chihiro, born 22 May 1998) is a Japanese tennis player.
On 24 June 2019, Muramatsu achieved a career-high singles ranking of world No.
300.
On 2 April 2018, she peaked at No.
303 in the doubles rankings.
Muramatsu has won one singles and two doubles titles on the ITF Women's Circuit.
She made her WTA main-draw debut at the 2018 Japan Women's Open after receiving a wild card for the doubles tournament, partnering Hiroko Kuwata.