| Ocean View, CA (District) |
| Ocean View, CA (District) |
| Oceana Intermediate School District, MI (ISD) |
| Oceanport School District, NJ (District) |
| Oceanside Charter School, NJ (District) |
| Oceanside Unified, CA (District) |
| 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) |
