Family name Pirosca (Pirosca 
) , all over the world, is a rare last name. The surname Pirosca is habitual in Romania, where it is quite a rare surname, Hungary, where it is a rare surname, and Italy, where it is an extremely rare surname. In absolute terms, it is the most numerous in Romania, Hungary, and the United States. Very seldom, Pirosca is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pirosca | Romania, Italy, Hungary, United States, Brazil |