Cognomen Deawan (Deawan 
) , in all the world, is a rare last name. The cognomen Deawan is habitual in Bangladesh, where it is a very rare surname, Thailand, where it is an extremely rare surname, and Philippines. Measured by absolute frequency, this name is the most popular in Bangladesh, India, and Thailand. Much less frequently, Deawan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deawan | South Africa, Thailand, India, Pakistan, Bangladesh |