Johann Reinhard may refer to:
Johann Reinhard I, Count of Hanau-Lichtenberg (1569–1625) Johann Reinhard II, Count of Hanau-Lichtenberg (1628–1666) Johann Reinhard III, Count of Hanau-Lichtenberg (1665–1736) Johann Reinhard Blum (1802–1883), German mineralogist
See also Johan Reinhard (born 1943), American anthropologist, archaeologist, and explorer