Walchsee is a municipality in the Austrian state of Tyrol, located in the Kufstein district. It lies in the lower Inn valley and belongs to the Kaiserwinkl area and the Untere Schranne.
The municipality shares its name with Walchsee lake, which sits beside the village and is the largest bathing lake in Tyrol. The surrounding Kaiserwinkl landscape is characterised by meadows and the nearby Kaiser mountains, and the area is a base for walking, cycling and water-based recreation.