Jeong Su-nam (; born 6 June 1996) is a South Korean female tennis player.

She has career-high WTA rankings of 357 in singles, achieved on 29 May 2017, and 829 in doubles, achieved on 30 December 2019. In her career, she has won seven singles titles on the ITF Circuit.

Jeong made her WTA Tour main-draw debut at the 2017 Korea Open, after receiving a wildcard into the doubles tournament alongside Park Sang-hee.

Playing for the South Korea Fed Cup team, she has a win-loss record of 3–3.

ITF finals Singles: 9 (7 titles, 2 runner–ups) Legend$25,000 tournaments$15,000 tournaments$10,000 tournamentsFinals by surfaceHard (7–2)Carpet (0–0) ResultW–LDateTournamentTierSurfaceOpponentScoreWin 1–0 May 2016Incheon Open, South Korea25,000 Hard Han Na-lae 6–4, 4–6, 6–4Win 2–0 Jul 2016ITF Gimcheon, South Korea10,000 Hard Hanna Chang 4–6, 6–2, 6–3Win 3–0 Jun 2017ITF Sangju, South Korea15,000 Hard Choi Ji-hee 6–2, 6–3Win 4–0 Jun 2017ITF Gimcheon, South Korea15,000 Hard Choi Ji-hee 6–3, 3–6, 6–2Win 5–0 Jun 2017ITF Gimcheon, South Korea15,000 Hard Han Sung-hee 6–3, 6–1Win 6–0 Sep 2018ITF Yeongwol, South Korea15,000 Hard Lee So-ra 6–2, 6–1Loss 6–1 Jun 2019ITF Gimcheon, South Korea15,000 Hard Shiori Fukuda 2–6, 6–4, 5–7Loss 6–2 Dec 2019ITF Navi Mumbai, India25,000 Hard Barbara Haas 6–4, 2–6, 6–7(2–7)Win 7–2 Sep 2022ITF Yeongwol, South Korea15,000 Hard Clara Vlasselaer 6–4, 6–1

Doubles: (1 title, 1 runner–up) ResultNo.DateTournamentTierSurfacePartnerOpponentsScoreWin 1–0 Sep 2019ITF Yeongwol, South KoreaW15 Hard Kim Na-ri Rina Saigo Yukina Saigo 6–4, 6–3Loss 1–1 Sep 2024ITF Yeongwol, South KoreaW15 Hard Ye Qiuyu Lee Ya-hsin Lin Fang-an 4–6, 7–6(6), [6–10]

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