Yun Mi Jin (born 30 April 1983) is an athlete from South Korea. She competes in archery. She holds the Olympic record for a women's 18-arrow match, at 173 out of a possible 180. Yun set the record in Sydney, Australia at the 2000 Summer Olympics and matched it in Athens, Greece.

Yun represented Korea at the 2004 Summer Olympics. She placed 3rd in the women's individual ranking round with a 72-arrow score of 673. In the first round of elimination, she faced 62nd-ranked Hanna Karasiova of Belarus. Yun defeated Karasiova 162-155 in the 18-arrow match to advance to the round of 32. In that round, she faced 35th-ranked Japanese archer Sayami Matsushita, defeating 173-149 and tying her own Olympic record for score in an 18-arrow match. Yun then defeated 19th-ranked Jennifer Nichols of the United States 168-162, advancing to the quarterfinals.

In the quarterfinals, Yun faced Yuan Shu Chi of Chinese Taipei, losing to the 6th-ranked archer to end the Korean team's hopes of sweeping the medals. The final score of 107-105 in the 12 arrow match placed Yun 5th overall in women's individual archery.

Yun was also a member of the team that won the gold medal for Korea in the women's team archery competition.