Hans Schmidt-Isserstedt (1900-1973) was a German conductor and composer. He studied music and composition in Berlin, and began his conducting career in the opera houses of Wuppertal, Rostock and Darmstadt. He was appointed Principal Conductor of the Hamburg State Opera in 1935, and Director of the Deutsches Opernhaus (Berlin) in 1943. In 1945 he joined Radio Hamburg and was invited by the Allies to found the Nordwestdeutscher Rundfunk Symphony Orchestra. He was also Principal Conductor of the Stockholm Philharmonic (1954–63), and has appeared as guest conductor with orchestras throughout the world.