Filzmoos is a town with 1,451 inhabitants (1 January 2016) in Salzburg in the district St. Johann im Pongau in Austria. The municipality has shares in the UNESCO World Heritage Hallstatt-Dachstein / Salzkammergut. The village belonged to 2004 for the judicial district Radstadt and is since 1 January 2005, part of the judicial district of Sankt Johann im Pongau.