|central North America|
The Dhegihan languages are a group of Siouan languages that include Kansa– Osage, Omaha–Ponca, and Quapaw. Their historical region included parts of the Ohio and Mississippi River Valleys, the Great Plains, and southeastern North America.
Kansa and Osage are mutually intelligible,  as are Omaha and Ponca.
The 2nd Annual Dhegiha Gathering in 2012 brought Kansa, Quapaw, Osage, Ponca and Omaha speakers together to share best practices in language revitalization. 
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Dhegiha". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
- Hardy, Heather K. and Scancarelli, Janine (2005) "Native American languages of the southeastern United States", p. 455. ISBN 0803242352
- "Dhegiha Gathering Agenda, 2012" (PDF). Archived from the original (PDF) on 2013-06-06. Retrieved 2012-09-22.
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