Quercy (French: [kɛʁsi] ⓘ; Occitan: Carcin [kaɾˈsi], locally [kɔɾˈʃi]) is a former province of France located in the country's southwest, bounded on the north by Limousin, on the west by Périgord and Agenais, on the south by Gascony and Languedoc, and on the east by Rouergue and Auvergne.

The monarchs of both England and France confirmed and added to the privileges of the towns and the district, each thus hoping to attach the inhabitants to his own interest.

In 1360, by the Treaty of Brétigny, the whole county passed to England, but in 1440 the English were finally expelled.

In the 16th century Quercy was a stronghold of the Protestants, and the scene of a savage religious warfare.

The civil wars of the reign of Louis XIII largely took place around Montauban.