Family name Khourn (Khourn 
) , in all the world, is a very rare surname. The last name Khourn is habitual in Cambodia, where it is a very rare surname, Australia, and the United States, where it is an extremely rare surname. Much less frequently, Khourn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khourn | Cambodia, Australia, Canada, United States, Malaysia |