Johann Michael Leupoldt (November 11, 1794 – August 21, 1874) was a German psychiatrist born in , Bavaria. In 1818 he obtained his medical doctorate at the University of Erlangen, and following graduation taught classes at Erlangen in anatomy and physiology and also gave lectures on mental illness. In 1820 he received a grant from the Bavarian government to continued his education in psychiatry in Berlin. While working in the mental ward at the Charité, he made the acquaintanceship of Anton Ludwig Ernst Horn (1774-1848) and Johann Gottfried Langermann (1768-1832). In 1821 he became an associate professor at Erlangen, followed by a full professorship in 1826.