Chihiro Muramatsu

is a Japanese tennis player. On 24 February 2020, she 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. Since January 2026, she has not competed on any tournaments of the pro tour.

Career 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.

At the 2019 Kunming Open, as a part of the ITF Circuit, Muramatsu recorded one of her biggest victory defeating top 100 Zhu Lin in the second round.

She qualified for the main draw of the 2020 Thailand Open in Hua Hin but lost to Barbara Haas, in the first round.

Grand Slam singles performance timeline

ITF Circuit finals Singles: 4 (1 title, 3 runner-ups) Legend W25/35 tournaments (1–1) W10/15 tournaments (0–2)

Doubles: 10 (3 titles, 7 runner-ups) Legend $60,000 tournaments (0–1) $25,000 tournaments (2–3) $10/15,000 tournaments (1–3)