Around the world, Montecillo (Montecillo 
) is a very rare male forename. The forename Montecillo is characteristic of Philippines, where it is a very rare boy's name, and China, where it is an extremely rare masculine name. Much more prevalently, Montecillo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Montecillo | Mexico, Saudi Arabia, United States, Philippines, United Arab Emirates |