Quercy (French pronunciation: [kɛʁsi]; Occitan: Carcin, pronounced [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.
Quercy comprised the present-day department of Lot, the northern half of the department of Tarn-et-Garonne, and a few communities in the departments of Dordogne, Corrèze, and Aveyron. The traditional capital of Quercy is Cahors, now prefecture (capital) of Lot. The largest town of Quercy is Montauban, prefecture of Tarn-et-Garonne. However, Montauban lies at the traditional border between Quercy and Languedoc, in an area very different from the rest of Quercy, and it is closer historically and culturally to Toulouse and the rest of Languedoc, therefore it should be considered a special case, not totally part of Quercy. Also distinct from the rest of the region is the Quercy Blanc lying between Cahors and the southern boundary of Lot, characterised by its white limestone buildings.