Tengrisaurus (meaning "Tengri lizard") is a genus of lithostrotian sauropod, from the Early Cretaceous (Valanginian-Hauterivian[1]) Murtoi Formation, Russia.

The genus is characterized by strongly procoelous anterior and middle caudal vertebrae, with strongly developed pre-epipophyses, highly pneumatic neural spine, and solid bone structure of the centrum.

[2] Averianov and Efimov (2018) recovered Tengrisaurus as a lithostrotian titanosaur.

They found Lithostrotia to be divided into two main lineages, one containing Saltasauridae, the other containing Lognkosauria, with Tengrisaurus belonging to the former.

[4] Malawisaurus Aeolosaurus Nemegtosaurus Rapetosaurus Tapuiasaurus Tengrisaurus Isisaurus Saltasauridae Pitekunsaurus Volgatitan Epachthosaurus Muyelensaurus Rinconsaurus Lognkosauria