Around the globe, Fontanini (Fontanini 
) is a rare unisex given name. The forename Fontanini is habitual in Southern Europe, particularly Italy, where it is a rare unisex name. Much more frequently, Fontanini is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Fontanini | Argentina, France, United States, Brazil, Italy |
| giusto fontanini Italian archbishop and archaeologist, IT (b. 1666) |
|