The Iditarod River is a river in western Alaska, at about . The river begins north of Chuathbaluk and flows 240 km (150 miles) north and then west to the Innoko River.

Iditarod is an Anglicization of the Ingalik Athabascan name for the river, Haiditirod or Haidilatna, which is probably an English version of the name of a village on the river, that may have corresponded with the village called Iditarod in the 1900s.