The Treaty of Chicago may refer to either of two treaties made and signed in the settlement that became Chicago, Illinois between the United States and the Odaawaa, Ojibwe, and Bodéwadmi Native American peoples. The first was in 1821 and the second in 1833.

The Potawatomi, also spelled Pottawatomi and Pottawatomie, are a Native American people of the Great Plains, upper Mississippi River, and western Great Lakes region. They traditionally speak the Potawatomi language, a member of the Algonquian family. The Potawatomi call themselves Neshnabé, a cognate of the word Anishinaabe. The Potawatomi are part of a long-term alliance, called the Council of Three Fires, with the Ojibway and Odawa (Ottawa). In the Council of Three Fires, the Potawatomi are considered the "youngest brother". Their people are referred to in this context as Bodéwadmi, a name that means "keepers of the fire" and refers to the council fire of three peoples.