Names
- Navajo Indians2
- Navajo Nation1
- Navajo Tribe of Arizona, New Mexico & Utah4
- Ojibwa Indians1
- Osage Nation10
- Osage Tribe, Oklahoma24
- Otoe Nation4
- Otoe-Missouria Tribe of Indians3
- Otoe-Missouria Tribe of Nation2
- Ottawa Indians1
- Ottawa Tribe3
- Ottawa Tribe of Oklahoma12
- Pawnee Indian Tribe of Oklahoma10
- Pawnee Nation of Oklahoma6
- Ponca Indians1
- Ponca Nation6
- Ponca Tribe of Indians of Oklahoma5
- Ponca Tribe of Nation1
- Potawatomi Tribe2
- Quapaw Nation14
