Fischbach (German pronunciation: [ˈfɪʃˌbax]) is a municipality in the district of Weiz in Styria, Austria.

On 27 February 2003, it was officially recognized as a climatic spa (Luftkurort) by the Styrian government.

The lowest point in the municipality is in the valley of the river Feistritz (Feistritztal) at 650 m (2,130 ft).

The Feistritz forms part of the eastern border and the Fischbach forest prevents a view from the town center down into the valley.

In the west runs the ridge of the Fischbach Alps, over which the saddle "Auf der Schanz" leads.