The Washitaw Nation is an African-American group associated with the Moorish Science Temple of America who claim to be a sovereign state of Native Americans within the boundaries of the United States of America. Their name is appropriated from that of the Ouachita tribe, who are also eponymous of the Washita River and of Washita, Oklahoma. The group is part of the sovereign citizen movement, whose members generally believe that they are not subject to any statutes or proceedings at the federal, state, or municipal levels.

The Moorish Science Temple of America is an American national and religious organization founded by Noble Drew Ali in the early 20th century. He based it on the premise that African Americans are descendants of the Moabites and thus are "Moorish" by nationality, and Islamic by faith. Ali put together elements of major traditions to develop a message of personal transformation through historical education, racial pride, and spiritual uplift. His doctrine was also intended to provide African Americans with a sense of identity in the world and to promote civic involvement.