Cognomen Ulloa Aguilar (Ulloa Aguilar 
) , globally, is a very rare surname. The last name Ulloa Aguilar is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare surname, Ecuador, and Costa Rica, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ulloa Aguilar | Chile, Costa Rica, Nicaragua, Ecuador, Spain |