| Abbreviation | Definition |
|---|---|
| NZBM | New Zealand Bravery Medal |
| NZMA | New Zealand Music Awards |
| OA | Order of Australia |
| OAA | Outstanding Achievement Award |
| OAE | Ohio Award for Excellence |
| OAM | Order of Australia Medal |
| OAYA | Outstanding Achievement Youth Award |
| OBE | Officer of the Most Excellent Order of the British Empire |
| OBP | Organizational Behaviour Professional |
| OBT | Order of the Burdened Tyger |
| OBTA | Outstanding Biology Teacher Award |
| OC | The Order of Canada |
| OCDA | Orange County Design Awards |
| OCEB | OMG-Certified Expert in BPM |
| OCM | Order of Civil Merit |
| OCP | OPSEC (OPerational SECurity) Certified Professional |
| OES | Outstanding Engineering Alumnus |
| OFA | Outstanding Faculty Awards |
| OHSA | Outstanding Humanitarian Service Award |
| OIAE | Office of Integrated Award Environment |