Cognomen Brethel (Brethel 
) , in the world, is a very rare surname. The surname Brethel is characteristic of the United States, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Much less frequently, Brethel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Brethel | Mexico, Canada, United States, Philippines |