All around the world, นามสกุล (Surname 
, นามสกุล 
, Surnak 
) is a very rare unisex first name. The first name นามสกุล is habitual in Nigeria, where it is a very rare epicene name, and China, where it is an extremely rare male name. More prevalently, นามสกุล is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Surname | Australia, Lithuania, Uzbekistan, India, Latvia |
| นามสกุล, Ounsakul | Thailand |
| Surnak | India, Thailand, United States |
Lastname, Namsakun, Surename, and Surnangkana