| Mun Ji-yun | |
| Nationality: | South Korean |
| Sport: | Judo |
| Birth Date: | 19 April 1971 |
Mun Ji-yun (born 19 April 1971) is a South Korean judoka. She competed in the women's heavyweight event at the 1992 Summer Olympics.[1]
She finished fifth at the 1989 World Judo Championships, won the 1991 World Judo Championships +72 kg class, and won a bronze medal at the 1993 World Judo Championships. On the continental level she won the silver medal at the 1988 Asian Judo Championships (as well as a bronze medal in the open class) and a bronze medal at the 1990 Asian Games.