- pl. -·dans or -·dan a member of a North American Indian people of North Dakota
- the Siouan language of this people
Origin of MandanFrench Mandanes, Mantanes, plural , perhaps ultimately ; from Dakota mawátana
nounpl. Mandan or Man·dans
- A member of a Native American people formerly living in villages along the Missouri River in south-central North Dakota, with present-day descendants on Lake Sakakawea in west-central North Dakota.
- The Siouan language of the Mandan.
Origin of MandanFrench Mandane, probably from Dakota mawáta&phonn;na.