| Jeong Jae-mun | |
| Birth Date: | 1936 10, df=y |
| Birth Place: | Fuzan, Korea, Empire of Japan |
| Nationality: | South Korean |
| Occupation: | Political scientist |
| Education: | University of California, Berkeley |
| Party: | NKDP RDP NKP GNP |
| Office: | Member of the National Assembly of South Korea for |
| Term Start: | 13 May 1985 |
| Term End: | 29 May 2004 |
| Constituency: | (1985–1988) (1988–2004) |
| Predecessor: | constituency established |
| Native Name Lang: | ko |
Jeong Jae-mun (ko|정재문; 31 October 1936 – 11 September 2024) was a South Korean political scientist and politician. A member of the New Korean Democratic Party, the Reunification Democratic Party, and the Grand National Party, he served in the National Assembly from 1985 to 2004.[1]
Jeong died on 11 September 2024, at the age of 87.[2]