The Midwestern Tribe is a collective term for the Native American tribes that lived in the Midwest region of the United States. The three tribes included in this group are the Iowas, Otoe, and Osage. The Iowas were a tribe of Native Americans who lived in the Great Lakes region of the United States. The Otoe were a tribe of Native Americans who lived in the Great Plains region of the United States. The Osage were a tribe of Native Americans who lived in the Midwest region of the United States. All three of these tribes were part of the larger Midwestern Tribe.