Family name Olga Antonia (Olga Antonia 
) , all over the world, is a very rare surname. The cognomen Olga Antonia is characteristic of Chile, where it is a rare surname, and Spain, where it is a very rare surname. More frequently, Olga Antonia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Olga Antonia | Belgium, Spain, Peru, Ecuador, Chile |