Family name Annastacio (Annastacio 
) , around the world, is a very rare last name. The cognomen Annastacio is characteristic of Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname, and Argentina. Likewise, Annastacio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Annastacio | Brazil, Argentina, Philippines |