| Oakland CUSD 5, IL (District) |
| Oakland FlexTech High School, MI (PSA) |
| Oakland International, MI (PSA) |
| Oakland Schools, MI (ISD) |
| Oakland Sd 1, OR (District) |
| Oakland Unified, CA (District) |
| Oakland-Macomb Montessori Academy, MI (PSA) |
| Oakley, KS (District) |
| Oakley Union Elementary, CA (District) |
| Oaklyn Public School, NJ (District) |
| Oakridge Public Schools, MI (District) |
| Oakridge Sd 76, OR (District) |
| Oaks-Mission, OK (District) |
| Oakside Prep Academy, MI (PSA) |
| Oakstone Community School, OH (PSA) |
