Katie Charlotte Boulteris a British professional tennis player. On 4 March 2024, she reached her best WTA singles ranking of world No. 27. On 31 December 2018, she peaked at No. 431 in the doubles rankings.
She is the current British No. 1 in women's singles. She has won two singles titles on the WTA Tour as well as seven singles titles and four doubles titles on the ITF Women's Circuit.
Boulter was ranked the No. 10 junior tennis player in the world in March 2014. She is based at the Lawn Tennis Association's National Tennis Centre in Roehampton and was coached by Jeremy Bates, Nigel Sears and Mark Taylor.