Pecorino Siciliano is an origin-protected firm sheep milk cheese from the Italian island and region of Sicily. This cheese comes from the classical Greek world: in ancient times it was recognized as one of the best cheeses in the world. It is produced throughout the island, but especially in the provinces of Agrigento, Caltanissetta, Enna, Trapani and Palermo. It is a pecorino-style cheese, like its close relation pecorino Romano, but not as well known outside Italy as the latter. The cheese was awarded with the Denominazione di Origine Protetta in 1955 and EU Protected designation of origin status in 1996.