Names
- Navajo Nation2
- Navajo Tribe of Arizona, New Mexico & Utah5
- Ojibwa Indians1
- Osage Nation8
- Osage Tribe, Oklahoma17
- Otoe Nation7
- Otoe-Missouria Tribe of Indians8
- Otoe-Missouria Tribe of Nation3
- Ottawa Tribe3
- Ottawa Tribe of Oklahoma5
- Pawnee Indian Tribe of Oklahoma17
- Pawnee Nation of Oklahoma15
- Ponca Nation11
- Ponca Tribe of Indians of Oklahoma9
- Ponca Tribe of Nation2
- Potawatomi Indians1
- Potawatomi Nation1
- Potawatomi Tribe11
- Quapaw Nation6
- Sac & Fox Nation, Oklahoma2
