Moritz Heyne (8 June 1837 in Weißenfels – 1 March 1906 in Göttingen) was a German Germanic linguist (Germanist).
He taught as a professor at the University of Halle (1869-1870), University of Basel (1870-), University of Göttingen (1883-).
He worked with Jakob Grimm to edit his dictionary after 1867.