Hanna Ludwig (10 January 1918 – 11 March 2014) was a German contralto and mezzo-soprano and an academic voice teacher. She participated in several roles at the first Bayreuth Festival after World War II and performed leading roles at major European opera houses, such as the title role of Der Rosenkavalier at the Vienna State Opera. She toured the world as a lieder singer. After retiring from the stage she turned to teaching in Ankara and, from 1971, at the Mozarteum.