Kansa, Kansas - a member of the Siouan people of the Kansas river valley in Kansas

Maha, Omaha - a member of the Siouan people formerly living in the Missouri river valley in northeastern Nebraska

Osage - a member of the Siouan people formerly living in Missouri in the valleys of the Missouri and Osage rivers; oil was found on Osage lands early in the 20th century

Ponca, Ponka - a member of the Siouan people of the Missouri river valley in northeastern Nebraska

Quapaw - a member of the Siouan people of the Arkansas river valley in Arkansas

Siouan, Sioux - a member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains

Kansa, Kansas - the Dhegiha dialect spoken by the Kansa people

Omaha - the Dhegiha dialect spoken by the Omaha people

Osage - the Dhegiha dialect spoken by the Osage people

Ponca, Ponka - the Dhegiha dialect spoken by the Ponca people

Quapaw - the Dhegiha dialect spoken by the Quapaw people

Siouan language, Siouan - a family of North American Indian languages spoken by the Sioux