Daxiatitan[a] is a genus of sauropod dinosaur known from the Lower Cretaceous of Gansu, China.

At the time of its discovery in 2008, Daxiatitan was regarded as potentially the largest known dinosaur from China.

The holotype of D. binglingi, GSLTZP03-001, was collected from the Hekou Group, in Gansu Province, and consists of ten cervical, ten dorsal, and two caudal vertebrae, cervical and dorsal ribs, a haemal arch, a scapulocoracoid, and a femur.

[1] The genus name refers to the Daxia River, a tributary of the Yellow River that runs through the area where the type specimen was found, and the species name refers to Bingling Temple, which is located in the region.

In 2020, a phylogenetic analysis conducted by Moore et al. found that Daxiatitan and Euhelopus may form a clade with mamenchisaurids.