
The Anishinaabe are a group of culturally-related Indigenous peoples resident in what are now Canada and the United States. They also include the Odawa, Saulteaux, Ojibwe, Potawatomi, Oji-Cree, and Algonquin peoples. The Anishinaabe speak Anishinaabemowin, or Anishinaabe languages that belong to the Algonquian language family. They historically lived in the Northeast Woodlands and Subarctic.

Arikara, also known as Sahnish, Arikaree, Ree, or Hundi, are a tribe of Native Americans in North Dakota. Today, they are enrolled with the Mandan and the Hidatsa as the federally recognized tribe known as the Mandan, Hidatsa, and Arikara Nation.

The Assiniboine or Assiniboin people, also known as the Hohe and known by the endonym Nakota, are a First Nations/Native American people originally from the Northern Great Plains of North America.

Crow Flies High was the chief of a band of dissident Hidatsa people from 1870 until their band joined the reservation system in 1894. This band was one of the last to settle on an Indian reservation. A North Dakota State Park is named after him.

The Crow, whose autonym is Apsáalooke, also spelled Absaroka, are Native Americans living primarily in southern Montana. Today, the Crow people have a federally recognized tribe, the Crow Tribe of Montana, with an Indian reservation located in the south-central part of the state.

The Dakota are a Native American tribe and First Nations band government in North America. They compose two of the three main subcultures of the Sioux people, and are typically divided into the Eastern Dakota and the Western Dakota.

Native Americans from various tribes lived in North Dakota before the arrival of settlers. With time, a number of treaties and agreements were signed between the Indians and the newcomers. Many of the treaties defined the domain of a specific group of Indians. The three maps below show the treaty territories of different Indians living in North Dakota and how the territories changed and diminished over time in the 19th century.

The Hidatsa are a Siouan people. They are enrolled in the federally recognized Three Affiliated Tribes of the Fort Berthold Reservation in North Dakota. Their language is related to that of the Crow, and they are sometimes considered a parent tribe to the modern Crow in Montana.

The Hunkpapa are a Native American group, one of the seven council fires of the Lakota tribe. The name Húŋkpapȟa is a Lakota word, meaning "Head of the Circle". By tradition, the Húŋkpapȟa set up their lodges at the entryway to the circle of the Great Council when the Sioux met in convocation. They speak Lakȟóta, one of the three dialects of the Sioux language.

The Lakota Nation Invitational is an annual multi-sport event tournament held each winter that began in 1976. The event takes place in the Rushmore Plaza Civic Center in Rapid City and hosts around 40 different schools from Indian Reservations in South Dakota, North Dakota, Nebraska and Wyoming. The event has categories including basketball, traditional Lakota hand games, knowledge and language bowls, a student art show, a business plan competition, wrestling, volleyball, cross country, archery, golf and a chess tournament

The Lakota are a Native American tribe. Also known as the Teton Sioux, they are one of the three prominent subcultures of the Sioux people. Their current lands are in North and South Dakota. They speak Lakȟótiyapi—the Lakota language, the westernmost of three closely related languages that belong to the Siouan language family.

The Mandan are a Native American tribe of the Great Plains who have lived for centuries primarily in what is now North Dakota. They are enrolled in the Three Affiliated Tribes of the Fort Berthold Reservation. About half of the Mandan still reside in the area of the reservation; the rest reside around the United States and in Canada.

The Ojibwe, Ojibwa, Chippewa, or Saulteaux are an Anishinaabe people of southern Canada and the northern Midwestern United States. In the United States, they have the fifth-largest population among Native American peoples, surpassed in number only by the Navajo, Cherokee, Choctaw and Sioux. In Canada, they are the second-largest First Nations population, surpassed only by the Cree. They are one of the most numerous indigenous peoples north of the Rio Grande.

The Sioux or Oceti Sakowin are groups of Native American tribes and First Nations peoples in North America. The modern Sioux consist of two major divisions based on language divisions: the Dakota and Lakota; collectively they are known as the Očhéthi Šakówiŋ. The term "Sioux" is an exonym created from a French transcription of the Ojibwe term "Nadouessioux", and can refer to any ethnic group within the Great Sioux Nation or to any of the nation's many language dialects.

The Spirit Lake Tribe is a federally recognized tribe based on the Spirit Lake Dakota Reservation located in east-central North Dakota on the southern shores of Devils Lake. It is made up of people of the Pabaksa (Iháŋkthuŋwaŋna), Sisseton (Sisíthuŋwaŋ) and Wahpeton (Waȟpéthuŋwaŋ) bands of the Dakota tribe. Established in 1867 in a treaty between Sisseton-Wahpeton Bands and the United States government, the reservation, at 47°54′38″N 98°53′01″W, consists of 1,283.777 square kilometres (495.669 sq mi) of land area, primarily in Benson and Eddy counties. Smaller areas extend into Ramsey, Wells and Nelson counties.
The Turtle Mountain Band of Chippewa Indians is a Native American tribe of Ojibwa and Métis peoples, based on the Turtle Mountain Indian Reservation in Belcourt, North Dakota. The tribe has 30,000 enrolled members. A population of 5,815 reside on the main reservation and another 2,516 reside on off-reservation trust land. It is federally recognized and Jamie Azure is the current Tribal Chairman elected for 2016 to 2018 term.
Turtle Mountain Indian Reservation is a reservation located in northern North Dakota, United States. It is the land base for the Turtle Mountain Band of Chippewa Indians. The population of the Turtle Mountain Indian Reservation consists of Plains Ojibwe and Métis and was first established in 1882.