Wilhelm Räuber was a German portrait, genre and history painter.

Wilhelm Räuber was the son of an Elbląg city councilor. He began his studies from 1869 to 1870 at the Academy of Fine Arts in Königsberg. In 1872 he moved to Munich and studied from April 26, 1872 to 1876 at the Royal Art Academy in Munich under the direction of Wilhelm von Diez. After graduating, he settled in Munich.

From 1879 he took part in numerous exhibitions. In 1880 he received the small gold medal at the art exhibition in Düsseldorf, and in 1883 he was also awarded the gold medal at the international art exhibition in Munich.

Wilhelm Räuber was mainly concerned with portrait painting, as well as with landscape, genre and history painting ("The surrender of Warsaw at the end of July 1656 to the Great Elector and the Swedish General Wrangel", "Gustav Adolf falls in the Battle of Lützen", "Presentation of Otto von Guericke's Magdeburg Hemispheres", "The Conversion of Saint Hubert").

His works are in the collections of the Nationalgalerie in Berlin, the Deutsches Museum and the Neue Pinakothek in Munich.