Joo Min-jin (Korean: 주민진; Hanja: 朱敏眞; born 1 August 1983 in Seoul) is a retired South Korean short track speed skater.

She won a gold medal in the 3000 metre relay at the 2002 Winter Olympics, together with teammates Choi Eun-kyung, Park Hye-won, and Choi Min-kyung.

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