Cognomen วัสสะ (Watsa 
, วัสสะ ) , across the world, is a rare family name. The cognomen วัสสะ is habitual in Cameroon, where it is quite a rare surname, Canada, where it is a very rare surname, and Georgia. Not in comparison with a country's population, it is commonest in Cameroon, India, and Canada. Very seldom, วัสสะ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Watsa | Thailand, United States, India, Canada, Cameroon |
| วัสสะ | Thailand |