Callobatrachus is an extinct genus of frog from the Early Cretaceous-age Yixian Formation of Liaoning, China.

[1][2] As frogs are rarely found as articulated skeletons in the fossil record, the discovery of this new taxon has provided important insight into anuran evolution.

[3] The holotype, IVPP V11525, is known from a nearly complete skeleton exposed in a dorsal view on a shale slab.

[4] It differs morphologically in many respects from all other discoglossids, including the number of presacral vertebrae (9 instead of the usual 8) and other primitive characters.

The hind limbs are remarkably well-preserved and are slenderly built, with an approximate total length of 116 mm.