Family name Fonsi (Fonsi 
) , in the world, is a rare last name. The last name Fonsi is characteristic of Cameroon, where it is a rare surname, Italy, and Morocco. Not in comparison with a country's population, it is the most numerous in Cameroon, Italy, and Brazil. Likewise, Fonsi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fonsi | Italy, Brazil, Morocco, Cameroon, India |
|
luis fonsi Puerto Rican singer, US (b. 1978) |
|
| mylva fonsi researcher |
|