| Mun Jun | |
| Sport: | Speed skating |
| Birth Date: | 14 July 1982 |
| Birth Place: | South Korea |
| Height: | 1.83 m |
| Weight: | 82 kg |
| Show-Medals: | yes |
Mun Jun (born 14 July 1982) is a South Korean speed skater. He represented his country at the 2002 Winter Olympics in Salt Lake City. In Salt Lake City where he finished in 19th position that he broke his own record to a new best time of 1.48.58.
In his second Winter Olympics in 2006, Torino, he competed at 1000m and 1500m. He finished 24th at the 1000m and 16th at the 1500m.