Family name วัฒนคุณ (Wattanakun 
, วัฒนคุณ , Wathanakhun ) , around the world, is a rare cognomen. The family name วัฒนคุณ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, วัฒนคุณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wattanakun | United States, Thailand |
| Wattanakhun, วัฒนคุณ, Wathanakhun | Thailand |
| วิเชียร วัฒนคุณ Thai politician, TH (b. 1930) |
|