Last name วัฒนธร (วัฒนธร 
, Wattanatorn 
, Watthanatorn ) , throughout the world, is a rare cognomen. The cognomen วัฒนธร is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, วัฒนธร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Watthanatorn, วัฒนธร, Watthanthorn | Thailand |
| Wattanatorn | Thailand, United States |