Kaijiangosaurus (meaning "Kaijiang lizard") is a genus of carnivorous tetanuran theropod dinosaur from the Middle Jurassic of China.

[1] The holotype specimen, CCG 20020, was discovered before 1984 in Sichuan, in a layer of the Xiashaximiao Formation dating from the Bathonian-Callovian.

The holotype proper contains the intercentrum of the atlas and the third to ninth neck vertebrae.

It has been suggested that it should be regarded as a synonym of Gasosaurus, which was found in the same strata as Kaijiangosaurus, the Lower Shaximiao Formation, or of Xuanhanosaurus.

The centra of the rear cervical are concave at their back; their spines are long and narrow.

The coracoid is oval and has a thick ridge at the upper outer side.

[6] Due to the fragmentary nature of the remains, it is uncertain what type of tetanuran theropod it is, though it may be a primitive carnosaur.