Oncino is a comune (municipality) in the Province of Cuneo in the Italian region Piedmont, located about 60 kilometres (37 mi) southwest of Turin and about 45 kilometres (28 mi) northwest of Cuneo. As of 31 December 2004, it had a population of 93 and an area of 48.6 square kilometres (18.8 sq mi).[3]
The municipality of Oncino contains the frazioni (subdivisions, mainly villages and hamlets) Villa, Ruata, Ruera, Serre, Saret, Sant'Ilario, Arlongo, Paschie', Tirolo, Bigorie, Chiotti, and Porcili.