Family name Carmos (Carmos 
) , worldwide, is a rare last name. The last name Carmos is characteristic of Portugal, where it is a very rare surname, Brazil, and the United States, where it is an extremely rare surname. Very seldom, Carmos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carmos | Portugal, Spain, Brazil, India, United States |