All over the world, Pilar Eugenia (Pilar Eugenia 
) is a rare feminine first name. The first name Pilar Eugenia is habitual in Chile, where it is quite a rare girly name, Costa Rica, where it is a rare feminine name, and Spain, where it is a very rare mostly feminine, but uncommonly boy's name. In absolute terms, it is the most numerous in Chile, Spain, and Peru. Very seldom, Pilar Eugenia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Pilar Eugenia | Spain, Peru, Ecuador, Chile, Colombia |