| Oceanside Union Free School District, NY (District) |
| Ochiltree County, TX (ISD) |
| Oconee 01, SC (District) |
| Oconee County, GA (ISD) |
| Oconee County, GA (District) |
| Oconee County, SC (ISD) |
| Oconomowoc Area School District, WI (District) |
| Oconto, WI (ISD) |
| Oconto Falls Public School District, WI (District) |
| Oconto Unified School District, WI (District) |
| Ocosta School District, WA (District) |
| Octorara Area SD, PA (District) |
| Ode Head Start, OR (District) |
| Ode Ltct District, OR (District) |
| Ode Ycep District, OR (District) |
