- Oglala Indians1
- Ojibwa Indians1
- Omaha Indians1
- Oohenonpa Indians1
- Osage Indians1
- Oto Indians1
- Ottawa Indians1
- Paiute Indians4
- Paloos Indians1
- Pawnee Indians5
- Pima Indians1
- Ponca Indians1
- Potawatomi Indians1
- Santee Indians1
- Sauk Indians2
- Seminole Indians1
- Seneca Indians1
- Shahaptian Indians1
- Shawnee Indians1
- Shoshonean Indians4