Hubert Marischka (27 August 1882 – 4 December 1959), brother of Ernst Marischka, was an Austrian operetta tenor, actor, film director and screenwriter.
Marischka was born in Brunn am Gebirge, the son of Jiří (or Johann) Marischka, a supplier to the court of the Austro-Hungarian monarchy, and his wife Bertha. Hubert began work as a joiner but trained as a singer and in 1904 began a new career in operetta in the town theatre of St. Pölten in Der arme Jonathan by Karl Millöcker. He had his first success as a singer in Brünn in 1906, as Danilo in Die lustige Witwe. On 27 July 1907 he sang at the premiere of the Der fidele Bauer by Leo Fall in Mannheim.
On 23 December 1908 he appeared on stage for the first time in Vienna at the Carltheater in Fall's Die geschiedene Frau. From then on he was particularly successful in the Theater an der Wien, where later he worked as director, mostly of operettas. In 1923 he rose to be director of the Theater an der Wien. On 28 February 1924 he was responsible for the premiere of the operetta Gräfin Mariza. At the end of the 1920s he sang at the Wiener Staatsoper in Eine Nacht in Venedig. For a time Marischka was also director of the Stadttheater Wien and of the Raimundtheater, director of the Papageno Music Publishers and a professor of operetta at the Akademie für Musik und darstellende Kunst.