| Ouray County, CO (ISD) |
| Ouray R-1, CO (District) |
| OURSC, AR (ISD) |
| Outagamie, WI (ISD) |
| Outlook Academy, MI (PSA) |
| Outside Creek Elementary, CA (District) |
| Ovando Elem, MT (District) |
| OVEC, KY (ISD) |
| Ovec-Exceptional Children Services, KY (District) |
| Overton County, TN (District) |
| Overton County, TN (ISD) |
| Overton ISD, TX (District) |
| Overton Public Schools, NE (District) |
| Ovid-Elsie Area Schools, MI (District) |
| Owasso, OK (District) |
