Surname Mariantonieta (Mariantonieta 
) , around the world, is a very rare family name. The cognomen Mariantonieta is habitual in Latin America and the Caribbean, particularly Venezuela, where it is a rare surname, and Mexico, where it is an extremely rare surname. Also, Mariantonieta is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mariantonieta | United States, Spain, Ecuador, Mexico, Venezuela |