Sloanbaatar is a mammal genus that lived in Mongolia during the Upper Cretaceous.

This animal was a member of the also extinct order Multituberculata within the suborder Cimolodonta and the family Sloanbaataridae.

The genus Sloanbaatar was named by Kielan-Jaworowska, Z. in 1970.

The name means "Sloan's hero", in honour of paleontologist R.E.

Fossil remains of the only known species, Sloanbaatar mirabillis, have been found in the Coniacian - Santonian (Upper Cretaceous)-age strata of the Djadokhta Formation in Mongolia.