Around the globe, Castellino (Castellino 
) is a rare mostly boy's, but infrequently female first name. The first name Castellino is habitual in Italy, where it is a rare principally masculine, but very infrequently feminine name, and India, where it is an extremely rare unisex name. Predominantly, Castellino is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Castellino | Italy, United States, India, Argentina, France |
| onorato castellino Italian economist, IT (b. 1935) |
|