Around the world, Romero Avendaño (Romero Avendaño 
) is an extremely rare unknown gender first name. Much more frequently, Romero Avendaño is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Romero Avendaño | Ecuador, Colombia, Spain, Chile, Venezuela |
William, and Gisela Margarita