The Quapaw (/ˈkwɔːpɔː/ KWAW-paw; or Arkansas and Ugahxpa) people are a tribe of Native Americans that coalesced in what is known as the Midwest and Ohio Valley of the present-day United States. The Dhegiha Siouan-speaking tribe historically migrated from the Ohio Valley area to the west side of the Mississippi River in what is now the state of Arkansas; their name for themselves (or autonym) refers to this migration and to traveling downriver.