Fieberbrunn is a market town in Tyrol, Austria, in the Kitzbühel district. It is located at 47°28′N 12°33′E, in the Kitzbühel Alps. Fieberbrunn has a population of 4,180 (2001), and is the most populous municipality in the Pillerseetal valley.
According to a legend, the fountain near its church, and later also the market town received the name Fieberbrunn (fever fountain) when Tyrolean Countess Margarete Maultasch was healed from fever after drinking from it. Previously the market town was named Pramau.
Fieberbrunn is a winter sports resort and venue of international snowboarding events (like Lords of the Boards), as well as a hiking and mountaineering resort in summer. Since 2006 Fieberbrunn is venue of a new event called 'SNOWFEVER', which is one of the biggest Big Mountain Events in Austria. It is also home of the churchjump.
The bathing lake of the Lauchsee is important for summer tourism.