Pediomeryx is an extinct genus of artiodactyl, of the family Palaeomerycidae, endemic to North America. It lived during the Late Miocene 10.3—4.9 Ma, existing for approximately 5 million years. Fossils have been recovered from the Midway Site in Florida, Saskatchewan, Boron, California, and several sites in Nebraska and Wyoming. They were comparable in size to red deer, most specimens weighing between 100 and 200 kg, but surpassing 400 kg on the case of P. figginsi.