Cognomen Dewsa (Dewsa 
) , across the world, is a very rare last name. The last name Dewsa is habitual in Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Much more frequently, Dewsa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dewsa | Nigeria, Malaysia, India, United States |