Family name Antonieta Del Pilar (Antonieta Del Pilar 
) , globally, is a very rare surname. The surname Antonieta Del Pilar is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More frequently, Antonieta Del Pilar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Antonieta Del Pilar | Peru, Chile, Ecuador |