Kalimantsia is an extinct chalicothere from the Miocene of Bulgaria, Europe.

Kalimantsia is named for the area in which it was discovered in 2001 by Geraads, Spassov, and Kovachev.

The habitat would have been quite open and the remains of Kalimantsia are accompanied by those of horses, early deer, and various carnivorous mammals.

Kalimantsia has a shorter muzzle than the horse-like shapes of the rest of the chalicotheres.

The teeth of Kalimantsia are long and low, and well adapted for eating leaves.