Sora is a town and comune of Lazio, Italy, in the province of Frosinone. It is built in a plain on the banks of the Liri. This part of the valley is the seat of some important manufacturing, especially of paper mills. The area around Sora is famous for the costumes of its peasants.

The province of Frosinone is a province in the Lazio region of Italy. Its capital is the city of Frosinone. It has an area of 3,247 square kilometres (1,254 sq mi) and a total population of 493,605 (2016). The province contains 91 comuni, listed in the comuni of the province of Frosinone.