Family name Omar Alvaro (Omar Alvaro 
) , globally, is an extremely rare last name. The surname Omar Alvaro is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Omar Alvaro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Omar Alvaro | Chile, Peru, Mexico, Ecuador, Costa Rica |
Rosas, and Seguel Barrera