Nontron (French pronunciation: [nɔ̃tʁɔ̃] ⓘ; Occitan: Nontronh [nunˈtɾuɲ]) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.

The name Nontron probably derives from the Gallo-Roman personal name Nantironius.

[3] Over time, the placename has been spelt Natadun, Nattun, Nantrun and Nontroun, before the current Nontron.

[4] The town was probably founded around 1100 BC and has been invaded or sacked several times, including by Saracens in the eighth century.

[5] The town's railway station served passengers between 1883 and 1940, continuing to handle freight until 1975.