Hemiprotosuchus is an extinct genus of protosuchid crocodyliform from the Late Triassic (Norian stage) Los Colorados Formation of the Ischigualasto-Villa Unión Basin in northwestern Argentina, South America. It was named in 1969 by paleontologist José Bonaparte . The type species is H. leali.
Hemiprotosuchus was named by Argentinian paleontologist José Bonaparte in 1969. The type species is H. leali. The fossils included a skull and jaws as well as some postcranial elements.
A 2009 cladistic analysis of protosuchids by paleontologist Eric Buffetaut et al. found that Hemiprotosuchus was the sister taxon of Protosuchus.