Names
- Navajo Tribe of Arizona, New Mexico & Utah, New Mexico & Utah2
- Ojibwa Indians1
- Osage Nation11
- Osage Tribe, Oklahoma61
- Otoe Nation1
- Otoe-Missouria Tribe of Indians2
- Otoe-Missouria Tribe of Nation3
- Ottawa Tribe28
- Ottawa Tribe of Oklahoma16
- Pawnee Indian Tribe of Oklahoma31
- Pawnee Nation of Oklahoma8
- Ponca Nation5
- Ponca Tribe of Indians of Oklahoma3
- Ponca Tribe of Nation4
- Potawatomi Indians1
- Potawatomi Tribe4
- Quapaw Nation22
- Sac & Fox Nation, Oklahoma7
- Sac and Fox Nation20
- Sauk Indians1
