Bernhard Gauer (May 19, 1882 – 1955) was a German painter and mosaic artist. Born in Trier, Gauer attended the Munich Academy and studied under Carol von Marr and Eduard von Gebhardt and then continued his studies in Italy. Eventually, he settled in Dusseldorf and joined the Malkasten artist association. He then served as the chairman of the Association of Dussedorf Artists after World War II. Gauer created stained glass and mosaics in several churches.