| Jeong Su-nam 정수남 | |
| Birth Date: | 1996 6, df=yes |
| Plays: | Right-handed (two-handed backhand) |
| Careerprizemoney: | $32,497 |
| Singlestitles: | 6 ITF |
| Highestsinglesranking: | No. 357 (29 May 2017) |
| Currentsinglesranking: | No. 1083 (6 February 2023) |
| Doublestitles: | 0 |
| Highestdoublesranking: | No. 874 (31 December 2018) |
| Currentdoublesranking: | No. 1402 (6 February 2023) |
| Updated: | 22 June 2019 |
| Hangul: | 정수남 |
| Rr: | Jeong Sunam |
| Mr: | Chŏng Sunam |
Jeong Su-nam (Korean: 정수남; 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 937 in doubles, achieved on 25 July 2016. Jeong has won seven ITF Circuit singles titles in her career.
She made her WTA Tour main-draw debut at the 2017 Korea Open, where she received a wildcard alongside Park Sang-hee in the doubles tournament.
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | ||
|---|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | May 2016 | ITF Incheon, South Korea | 25,000 | Hard |  Han Na-lae | 6–4, 4–6, 6–4 | ||
| Win | 2–0 | Jul 2016 | ITF Gimcheon, South Korea | 10,000 | Hard |  Hanna Chang | 4–6, 6–2, 6–3 | ||
| Win | 3–0 | Jun 2017 | ITF Sangju, South Korea | 15,000 | Hard | Choi Ji-hee | 6–2, 6–3 | ||
| Win | 4–0 | Jun 2017 | ITF Gimcheon, South Korea | 15,000 | Hard | Choi Ji-hee | 6–3, 3–6, 6–2 | ||
| Win | 5–0 | Jun 2017 | ITF Gimcheon, South Korea | 15,000 | Hard | Han Sung-hee | 6–3, 6–1 | ||
| Win | 6–0 | Sep 2018 | ITF Yeongwol, South Korea | 15,000 | Hard | Lee So-ra | 6–2, 6–1 | ||
| Loss | 6–1 | Jun 2019 | ITF Gimcheon, South Korea | 15,000 | Hard |  Shiori Fukuda | 2–6, 6–4, 5–7 | ||
| Loss | 6–2 | Dec 2019 | bgcolor=lightblue | ITF Navi Mumbai, India | bgcolor=lightblue | 25,000 | Hard |  Barbara Haas | 6–4, 2–6, 6–7(2–7) |
| Win | 7–2 | Sep 2022 | ITF Yeongwol, South Korea | 15,000 | Hard |  Clara Vlasselaer | 6–4, 6–1 |