Nontron is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France. The name Nontron probably derives from th…Nontron 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. Over time, the placename has been spelt Natadun, Nattun, Nantrun and Nontroun, before the current Nontron.