War bonnets are feathered headgear traditionally worn by male leaders of the American Plains Indians Nations who have earned a place of great respect in their tribe. Originally they were sometimes worn into battle, but they are now primarily used for ceremonial occasions. In the Native American and First Nations communities that traditionally have these items of regalia, they are seen as items of great spiritual and political importance, only to be worn by those who have earned the right and honour through formal recognition by their people.

Plains Indians or Indigenous peoples of the Great Plains and Canadian Prairies are the Native American tribes and First Nation band governments who have historically lived on the Interior Plains of North America. While hunting-farming cultures have lived on the Great Plains for centuries prior to European contact, the region is known for the horse cultures that flourished from the 17th century through the late 19th century. Their historic nomadism and armed resistance to domination by the government and military forces of Canada and the United States have made the Plains Indian culture groups an archetype in literature and art for Native Americans everywhere.