Alexander Sascha Ritter (7 June 1833 – 12 April 1896) was a German composer and violinist. He wrote two operas, Der faule Hans and Wem die Krone?; a few songs; a symphonic waltz; and two symphonic fantasias. Ritter died in Munich.
Ritter had a strong influence on Richard Strauss. He persuaded him to abandon the conservative style of his youth, and begin writing tone poems; he also introduced Strauss to the essays of Richard Wagner and the writings of Schopenhauer. He encouraged Strauss to write his first opera Guntram, but was deeply disappointed at the final version of the libretto, which Ritter took to be a rejection of Schopenhauerian-Christian ideals.