Marschner is a surname. Notable people with the surname include:
Adolf Eduard Marschner (1819–1853), German composer Heinrich Marschner (1795–1861), German composer Kurt Marschner (1913–1984), German operatic tenor and actor Thorsten Marschner (born 1968), German high jumper Wolfgang Marschner (1926–2020), German violinist, teacher of violin, composer, and conductor