Bubodens magnus is a poorly understood, extinct multituberculate mammal from the Upper Cretaceous of South Dakota.

It is known only from a single tooth, and has uncertain placement within the suborder Cimolodonta though has been tentatively argued to belong to Taeniolabidoidea.

[3] This species is the only known member of the genus Bubodens, and may have been the largest known mammal of the Cretaceous.

[4]