Across the world, Santantonio (Santantonio 
) is a very rare mostly male, but infrequently female forename. The forename Santantonio is habitual in Southern Europe, particularly Italy, where it is a very rare dominantly masculine, but infrequently feminine name. Much more prevalently, Santantonio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Santantonio | Belgium, Italy, United States, France, Brazil |