Surname Gumaro (Gumaro 
) , worldwide, is a common last name. The last name Gumaro is characteristic of Mexico, where it is quite a rare surname, and Philippines, where it is a rare surname. Also, Gumaro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gumaro | Philippines, Mexico, Colombia, United States, Canada |