Family name Pilar Eugenia (Pilar Eugenia 
) , all over the world, is a rare last name. The last name Pilar Eugenia is habitual in Chile, where it is a rare surname, and Spain, where it is a very rare surname. More frequently, Pilar Eugenia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pilar Eugenia | Peru, Colombia, Ecuador, Spain, Chile |