Moritz Haupt (July 27, 1808 – February 5, 1874), was a German philologist.
He was born at Zittau, Lusatia, Saxony. His early education was mainly conducted by his father, Ernst Friedrich Haupt, burgomaster of Zittau, a man of learning who took pleasure in translating German hymns or Goethe's poems into Latin, and whose memoranda were employed by Gustav Freytag in his Bilder aus der deutschen Vergangenheit. From the Zittau gymnasium, where he spent the five years 1821-1826, Haupt moved to the University of Leipzig intending to study theology; but his own inclinations and the influence of Professor Gottfried Hermann soon turned him in the direction of classical philology.
On the close of his university course (1830) he returned to his father's house, and the next seven years were devoted to study, not only of Greek, Latin and German, but of Old French, Provençal and Bohemian. His friendship with Karl Lachmann, formed at Berlin, had great effect on his intellectual development. In September 1837 he qualified at Leipzig as Privatdozent, and his first lectures, dealing with such diverse subjects as Catullus and the Nibelungenlied, indicated the two main strands of his interest. A new chair of German language and literature was founded for his benefit, and he became professor extraordinarius (1841) and then professor ordinarius (1843). In 1842 he married Louise Hermann, the daughter of his master and colleague.