Last name Romero-Portocarrero (Romero-Portocarrero 
) , in the world, is a very rare cognomen. The surname Romero-Portocarrero is characteristic of Southern Europe, particularly Spain, where it is a very rare surname. Also, Romero-Portocarrero is the forename as well as the last name. Parts of the name also exists independently as a last name Romero, and a last name Portocarrero.
| VARIANT | COUNTRY |
|---|---|
| Romero-Portocarrero | Spain |