Kamptobaatar is a Mongolian mammal genus from the Upper Cretaceous. It lived at the same time as the later dinosaurs. This animal was a member of the extinct order Multituberculata within the suborder Cimolodonta and family Sloanbaataridae. The genus Kamptobaatar ("bent hero") was named by Zofia Kielan-Jaworowska in 1970 based on a single species. "Bent" refers to the observable bend of the zygomatic arches in the skull.