Family name Santa Delfina (Santa Delfina 
) , in the world, is a very rare last name. The family name Santa Delfina is characteristic of Latin America and the Caribbean, particularly Mexico, where it is a very rare surname, and Argentina, where it is an extremely rare surname. More prevalently, Santa Delfina is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Santa Delfina | Mexico, Argentina, Peru, Ecuador |