Last name Jongmun (Jongmun 
) , all over the world, is a very rare surname. The cognomen Jongmun is habitual in Thailand, where it is a very rare surname, China, where it is an extremely rare surname, and the United States. More prevalently, Jongmun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jongmun | South Korea, India, United States, Thailand, China |