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

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.

This biographical article relating to South Korean tennis is a stub.