| Abbreviation | Definition |
|---|---|
| OCAS | Ontario College Application Service |
| OCB | Oklahoma Center for the Book |
| OCCB | Oasis Certificate and Competency Board |
| OCCD | Oregon Center for Career Development |
| OCCEA | Ocean County Council of Education Associations |
| OCD | Office of Child Development |
| OCDL | Open College for Direct Learning |
| OCDL | Oregon Center for Digital Learning |
| OCDSB | Ottawa-Carleton District School Board |
| OCE | Office of Clinical Education |
| OCE | Office of Communication and Education |
| OCE | Office of Continuing Education |
| OCE | Office of Cultural Education |
| OCE | Online and Continuing Education |
| OCE | Outreach and Continuing Education |
| OCEA | Ohio Catholic Education Association |
| OCEA | Okeechobee County Education Association |
| OCEA | Ontario Cooperative Education Association |
| OCEA | Ormsby County Education Association |
| OCEC | Ogle County Educational Cooperative |