Cognomen Casturino (Casturino 
) , around the globe, is a rare last name. The last name Casturino is characteristic of Latin America and the Caribbean, particularly Brazil, where it is a rare surname, and Argentina, where it is a very rare surname. Also, Casturino is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casturino | Brazil, Argentina |