Na Jung-woong
Na Jung-woong is a South Korean tennis player.
Na has a career high ATP singles ranking of 404 achieved on 16 September 2013. He also has a career high ATP doubles ranking of 966 achieved on 19 May 2014.
Na represents South Korea at the Davis Cup, where he has a W/L record of 0–1.
Challengers and Futures finals
Singles (1–5)
| Outcome | Date | Tournament | Surface | Opponent | Score |
| Runner-up | Seoul, South Korea | Hard |  Daniel Nguyen | 1–6, 4–6 | |
| Runner-up | Bhopal, India | Hard |  Sriram Balaji | 5–7, 5–7 | |
| Winner | Gimcheon, South Korea | Hard |  Chung Yun-seong | 6–3, 6–1 | |
| Runner-up | Gimcheon, South Korea | Hard |  Yusuke Watanuki | 5–7, 3–6 | |
| Runner-up | Anseong, South Korea | Clay | Cho Min-hyeok | 7–6, 2–6, 4–6 | |
| Runner-up | Daegu, South Korea | Hard | Hong Seong-chan | 0–6, 3–6 |
Doubles (0–1)
| Outcome | Date | Tournament | Surface | Partner | Opponent | Score |
| Runner-up | Cairo, Egypt | Clay | Yun Jae-won |  Maxime Janvier Kamil Majchrzak | 2–6, 2–6 |