The Sioux Tribe is a Native American tribe that has historically inhabited the Great Plains region of North America. The four crossword solutions for the term Sioux Tribe are Otoe (4 letters), Oglala (6 letters), Osage (5 letters), and DAKOTA (6 letters). The Otoe are a federally recognized tribe located in Nebraska and Oklahoma, while the Oglala are a Lakota Sioux tribe located in South DAKOTA. The Osage are a Midwestern Native American tribe located in Oklahoma, and the DAKOTA are a Sioux tribe located in Minnesota, North DAKOTA, and South DAKOTA.