Last name Montenegros (Montenegros 
) , globally, is a very rare surname. The last name Montenegros is habitual in Latin America and the Caribbean, particularly Argentina, where it is a very rare surname, Nicaragua, and Venezuela. Much less frequently, Montenegros is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Montenegros | Argentina, Spain, Nicaragua, Venezuela, Brazil |