Fischbach is a municipality in the district of Weiz in Styria, Austria. It has 1530 inhabitants. On 27 February 2003, it was officially recognized a…Fischbach is a municipality in the district of Weiz in Styria, Austria. It has 1530 inhabitants. On 27 February 2003, it was officially recognized as a climatic spa by the Styrian government. Fischbach is the highest place in East Styria.