The Klamath Tribes, formerly the Klamath Indian Tribe of Oregon, are a federally recognized Native American Nation consisting of three Native American tribes who traditionally inhabited Southern Oregon and Northern California in the United States: the Klamath, Modoc, and Yahooskin. The tribal government is based in Chiloquin, Oregon.

The Klamath people are a Native American tribe of the Plateau culture area in Southern Oregon and Northern California. Today Klamath people are enrolled in the federally recognized tribes:Klamath Tribes, Oregon Quartz Valley Indian Community, California.