Heinrich Unverricht (September 18, 1853 - April 22, 1912) was a German internist who was a native of Breslau.
In 1877 he obtained his doctorate from the University of Breslau, where he was a student of Michael Anton Biermer (1827-1892). Later he was a professor at Jena (1886) and Dorpat (1888), where he resigned in 1892 for political reasons, and became director of the city hospital at Magdeburg-Sudenburg.
Heinrich Unverricht is remembered for his research of epilepsy, especially his work with progressive myoclonic epilepsy (PME). In 1891 he described a form of PME that was later called Unverricht's disease. With pathologist Ernst Leberecht Wagner (1829-1888), the eponymous "Wagner-Unverricht syndrome" is named, which is a muscle disease similar to polymyositis. Unverricht published over fifty medical works, including Studien über die Lungenentzündung, his prize-winning doctorate thesis on pneumonia.