Surname วสุธัญ (วสุธัญ 
) , in the world, is an extremely rare last name. The surname วสุธัญ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, วสุธัญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วสุธัญ | Thailand |