Dongusuchus (meaning Donguz River crocodile in Greek, for the area where the type specimen was found[1]) is an extinct genus of archosaur.

According to Nesbitt (2009), the poorly-defined crista tibiofibularis and the absence of a distinct anteromedial tuber of the proximal portion of the thighbone in Dongusuchus suggest that it is not a member of Archosauria.

A paratype tibia was also found to be more closely related to Euparkeria and phytosaurs, on the basis of its convex and rounded distal surface.

Nesbitt assigned Dongusuchus to Archosauriformes on the basis of the following traits: its femur has a low fourth trochanter, and the distal condyles do not expand markedly beyond the shaft.

Both Dongusuchus and Yarasuchus were recovered in a clade with Spondylosoma and Teleocrater by Nesbitt et al. (2017)[6] at the base of Avemetatarsalia, making them bird-line archosaurs.