Man·​dan ˈman-ˌdan How to pronounce Mandan (audio)
plural Mandan or Mandans : a member of a Siouan-speaking Indigenous people of the Missouri River valley in North Dakota

Note: The Mandan are federally recognized as part of the Mandan, Hidatsa, and Arikara Nation in North Dakota.

: the Siouan language of the Mandans

Word History


French Mantanne, Mendanne, from Dakota (Santee dialect) mawátąna or a cognate Sioux form

First Known Use

1790, in the meaning defined at sense 1

Time Traveler
The first known use of Mandan was in 1790

Dictionary Entries Near Mandan

Cite this Entry

“Mandan.” Dictionary, Merriam-Webster, Accessed 21 Apr. 2024.

More from Merriam-Webster on Mandan

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!