Family name Montilas (Montilas 
) , all over the world, is an extremely rare last name. The cognomen Montilas is habitual in Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Montilas | Brazil |
| wilfrid montilas association football player, HT (b. 1971) |
|