Cognomen Brewen (Brewen 
) , throughout the world, is a rare family name. The cognomen Brewen is habitual in the United States, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United Kingdom. Also, Brewen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Brewen | United Kingdom, France, United States, Canada, Spain |