Family name Namsook (Namsook 
) , worldwide, is a very rare last name. The family name Namsook is habitual in Thailand, where it is a very rare surname, and China, where it is an extremely rare surname. More prevalently, Namsook is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Namsook | South Korea, Thailand, United States, China, Canada |