Oglala Sioux Tribe Tribal headquarters are based out of the Red Cloud building in the town of Pine Ridge.  

ENROLLED MEMBERS LIVING ON RESERVATION: 

19,639

Ohkay Owingeh ([ʔòhkèː ʔówĩ̂ŋgè], Navajo Kin Łichííʼ)  Pueblo located in New Mexioco

Omaha Tribe of Nebraska  A treaty  allowed the creation of the Nebraska Territory, and Omaha City was founded on July 4, 1854

The Oneida were members of the Iroquos Five Nation Confederacy.  Two parts of the tribes migrated to Canada and one to Wisconsin.

Oneida A Good Heart A Good Mind A Good Fire.  Oneida Reservation located adjacent to Green Bay, WI.

The Onondaga People ( "Hill Place") are one of the original five constituent nations of the  Iroquois Confederacy in northeast North America.

Garyling is home to Holikachuk and Ingalik Indians.

Organized Village of Kake is located in the Prince of Wales-Hyder Census Area of Alaska.

Organized Village of Kasaan   Kasaan is a city in the Prince of Wales-Hyder Census Area in the U.S. state of Alaska. The population was 49.

Organized Village of Kwethluk    in Central Alaskan Yup'ik, is a city in Bethel Census Area in the U.S. state of Alaska. At the 2010 census the population was 721,

Organized Village of Saxman is locate in the Ketichikan Gateway Borough of Alaska.

The Orutsararmiut Native Council is a Federally recognized governing body for the community of Bethel, Alaska.

Oscarville Traditional Village lies 6 miles southwest of Bethel and 401 miles west of Anchorage. Oscarville is located in the Bethel Recording District and Bethel Census Area.

Otoe-Missouria Tribe of Indians are located in Oklahoma and their language is Chiwere part of the Siouan language family.

The Ottawa Tribe of Oklahoma is one of four federally recognized tribes of Odawa people in the United States.