Around the world, Pilar Carolina (Pilar Carolina 
) is a rare feminine given name. The forename Pilar Carolina is habitual in Chile, where it is a rare feminine name, Peru, where it is a very rare feminine name, and Spain, where it is a very rare largely feminine, but seldom masculine name. Much less frequently, Pilar Carolina is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Pilar Carolina | Peru, Argentina, Spain, Chile, Ecuador |
Diaz, Muñoz, Serrano, Gonzalez, Hernandez, Vilches Ahumada, Vergara Leal, Suarez Morales, Aguilera Silva, and Acuña Carrasco