Wilhelm "Willy" Fischer (26 March 1904 – 21 October 1951) was a German politician from the Social Democratic Party (SPD) and a member of the German Bundestag.
In 1946, Fischer was a member of the Constituent State Assembly in Bavaria, and from 1946 until his entry into the German Bundestag he was a member of the Bavarian Landtag. In the first Bundestag elections of 1949, he was elected to parliament from the constituency of Nuremberg-Fürth and represented it until his death in 1951.