Saint-Cirq-Lapopie (French pronunciation: [sɛ̃ siʁk lapɔpi]; Occitan: Sent Circ de la Pòpia) is a commune in the Lot department in south-western France.

Saint-Cirq-Lapopie is 30 km east of Cahors, in the regional natural park Parc naturel régional des Causses du Quercy [de; fr].

The stronghold of Saint-Cirq-Lapopie was the main seat of one of the four viscounties that made up Quercy, divided among four feudal dynasties, the Lapopie, Gourdon, Cardaillac and Castelnau families.

Coming from Cabrerets pilgrims would pass through and then continue to Cahors, visiting St Stephen's cathedral.

[4][circular reference] The Guardian reported in July 2012 that the village received 400,000 visitors each year, mostly from within France, and that it had become "besieged by tourists" since winning a popularity vote on a French television programme in June 2012.