Robin Montgomery, born on September 5, 2004, in Washington, D.C., is an American professional tennis player who reached a career-high WTA singles ranking of No. 95 in June 2025. She made a historic junior breakthrough at the 2021 US Open, winning both the girls' singles and doubles titles—becoming the first player to achieve that double since 2004 and the first American girl to take the singles crown since 2017. Turning professional in 2020, she made her Grand Slam debut at that year's US Open and later secured her first WTA 1000-level win at the 2023 Miami Open. Her 2024 season featured notable milestones, including a first tour-level quarterfinal at the Rosmalen Open, a second-round appearance at Wimbledon, and her first WTA 500 quarterfinal at the Washington Open. Raised by a single mother and of Jamaican descent, Montgomery trains at the Junior Tennis Champions Center in Maryland and has already claimed one WTA Tour singles title.