Theodor Scheidl (3 August 1880 – 22 April 1959) was an Austrian baritone, athlete, and academic teacher. As a member of opera houses in Stuttgart and Berlin, he performed leading roles at international houses and festivals such as the Bayreuth Festival, where he appeared from 1914 to 1928. He created roles in several world premieres, including Young Columbus in Darius Milhaud's Christophe Colomb.