Cognomen Myeongju (Myeongju 
) , all over the world, is a rare family name. The cognomen Myeongju is habitual in South Korea, where it is a rare surname, and New Zealand, where it is a very rare surname. More prevalently, Myeongju is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Myeongju | New Zealand, South Korea, Thailand, United States |