Puybrun (French pronunciation: [pɥibʁœ̃]; Occitan: Puègbrun) is a commune in the Lot department in south-western France.

The toponym Puybrun (in Occitan Pègbrun) is found in the form Bastida de Podio bruni which is formed from Puy which is a francization of the Occitan pèg, pech from the Latin podium with the meaning of place located on a height and brown because of the colour given by the iron ore.[3] In 1282, a bastide was founded at Puybrun by Philipe de Hardi and William IV, a cistercian abbot of Dalon in the Perigord.

[4][5] A paréage had been created between the two in 1279.

[6] The bastide was not granted the right to build walls and ditches.

[6] The bastide would be attacked during the Hundred Years' War between the English and French and again during the French Wars of Religion in 1562 and again 1585.