Franz Joseph Aumann (also Auman, Aumon; 24 February 1728, Traismauer – 30 March 1797, Sankt Florian) was an Austrian composer. Before his voice broke, he sang in the same Viennese choir as Michael Haydn and Johann Georg Albrechtsberger, composers with whom he later in life traded manuscripts. In view of this circulation, it is not surprising that some of his music has been incorrectly attributed to Haydn. However, his Missa Profana, satirizing the stuttering and bad singing of a schoolmaster, was once attributed to Wolfgang Amadeus Mozart.