| Abbreviation | Definition |
|---|---|
| OCOM | Oregon College of Oriental Medicine |
| OCOT | Ontario College of Occupational Therapists |
| OCOT | Ontario College Of Technology |
| OCOT | Ontario College Of Trades |
| OCP | Ontario College of Pharmacists |
| OCPM | Ohio College of Podiatric Medicine |
| OCPP | Online College Preparation Program |
| OCSI | Olds College School of Innovation |
| OCSN | Official College Sports Network |
| OCSWSSW | Ontario College of Social Workers and Social Service Workers |
| OCT | Ontario College of Teachers |
| OCTC | Owensboro Community and Technical College |
| OCUC | Owatonna College University Center |
| OCV | Odessa College Video |
| ODC | Ohio Dominican College |
| ODW | Oregon Dairy Women College Scholarship |
| OEC | Oakland Early College |
| OHC | Ogden Honors College |
| OHC | Ouachita Hills College |
| OHC | Oxford House College |