Surname Dewn (Dewn 
) , around the world, is a very rare cognomen. The cognomen Dewn is habitual in India, where it is an extremely rare surname, Nigeria, and Canada. Not in comparison with a country's population, it is commonest in India, Nigeria, and the United States. Likewise, Dewn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dewn | Singapore, Nigeria, United States, India, Pakistan |