The Sauk or Sac are a group of Native Americans of the Eastern Woodlands culture group, who lived primarily in the region of what is now Green Bay, Wisconsin, when first encountered by the French in 1667. Their autonym is oθaakiiwaki, and their exonym is Ozaagii(-wag) in Ojibwe. The latter name was transliterated into French and English by colonists of those cultures. Today they have three federally recognized tribes, together with the Meskwaki (Fox), located in Iowa, Oklahoma and Kansas.
Massika, a Sauk Indian, left, and Wakusasse, right, of the Meskwaki. By Karl Bodmer, aquatint made at St. Louis, Missouri in March or April 1833 when Massika pleaded for the release of war chief Blackhawk following the Black Hawk War
Chief Wapello; "Wa-pel-la the Prince, Musquakee Chief", from History of the Indian Tribes of North America