Dalinghosaurus (often incorrectly spelled "Dalinghesaurus") is an extinct genus of lizards, first described in 1998 by S.A. Ji of the Peking University Department of Geology.

[1] It is known from the Early Cretaceous (Aptian) aged Yixian Formation of Liaoning, China.

Dalinghosaurus had extremely long tails and hindlimbs relative to its forelimbs.

Its relatives include the modern Chinese crocodile lizard (Shinisaurus) of southern China, the extinct Exostinus of Montana and Wyoming, and the extinct Carusia of Mongolia.

[3] The long legs of Dalinghosaurus indicate that it was a proficient runner across open environments, potentially capable of bipedal locomotion.