Preignan (French pronunciation: [pʁɛɲɑ̃]; Prenhan in Gascon) is a commune in the Gers department in southwestern France.

During the Merovignian period, the site began to be used as a cemetery and the Romanesque Church of Saint-Étienne was built using material from the villa.

[6] A fortified town emerged in the High Middle Ages on the hills facing the Gers River under the auspices of a lord of Preignan.

The village is also the site of the Chartreuse du Pastissé (also private property), where Jean-Joseph Dessolles, (1767-1828) lived.

Gerald VI, the Count of Armagnac, granted the hamlet a charter (charte de coutumes) in 1276.