Surname Fonca (Fonca 
) , in the world, is a rare last name. The family name Fonca is habitual in Latin America and the Caribbean, particularly Colombia, where it is a rare surname, Argentina, where it is an extremely rare surname, and Brazil. Much less frequently, Fonca is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fonca | Spain, Colombia, Brazil, United States, Argentina |