Ku Yeon-woo


Ku Yeon-woo is a South Korean tennis player.
She has a career-high singles ranking of world No. 195, achieved on 1 December 2025, and a best doubles ranking of No. 372, reached on 6 October 2025, by the WTA. She is the current No. 1 Korean singles player.

Career

Ku made her WTA Tour main-draw singles debut at the 2023 Korea Open as a qualifier, losing in the first round to Claire Liu.
She received a wildcard entry into the main-draw at the 2025 Korea Open, but again lost in the first round, this time to Loïs Boisson.

ITF Circuit finals

Singles: 13 (7 titles, 6 runner-ups)

ResultW–LDateTournamentTierSurfaceOpponentScore
Win1–0Aug 2019ITF Yeongwol, South KoreaW15Hard

Doubles: 14 (7 titles, 7 runner-ups)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScore
Loss0–1Mar 2021ITF Sharm El Sheikh, EgyptW15Hard