The Château de Puilaurens (also Puylaurens; in Occitan: lo Castèl de Puèg-Laurenç) is one of the so-called Cathar castles in what is now the South of France. It is located in the commune of Lapradelle-Puilaurens in the Aude département. The castle stands on a spur of rock above the Boulzane Valley and the villages of Lapradelle and Puilaurens.