Ponca of Nebraska Tribe Flag
The Ponca are a Native American people of the Dhegihan branch of the Siouan-language group. There are two federally recognized Ponca tribes: the Ponca Tribe of Nebraska and the Ponca Tribe of Indians of Oklahoma. Their traditions and historical accounts suggest they originated as a tribe east of the Mississippi River in the Ohio River valley area and migrated west for game and as a result of Iroquois wars. The term Ponca was the name of a clan among the Kansa, Osage, and Quapaws. The meaning of the name is unknown.