Cognomen วัฒนาสุข (วัฒนาสุข 
, Watthasuk , Wathanasook 
) , in the world, is a rare last name. The last name วัฒนาสุข is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Watthasuk, วัฒนาสุข | Thailand |
| Wathanasook | United States, Thailand |