Around the world, Efren Ricardo (Efren Ricardo 
) is a very rare masculine forename. Much less frequently, Efren Ricardo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Efren Ricardo | Costa Rica, Philippines, Mexico, Ecuador, Peru |
Reyes, Garces Calderon, Sanchez Morales, and Maldonado Alvarado