All around the world, Casarin (Casarin 
) is a rare gender-neutral forename. The first name Casarin is habitual in Southern Europe, particularly Italy, where it is a rare epicene name. Much more prevalently, Casarin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Casarin | Brazil, Italy, Mexico, France, Argentina |
| alonso casarin French artist, approximately 1845-1907, MX (b. 1845) |
|