| Abbreviation | Definition |
|---|---|
| OPGM | Old Pearl Game Management |
| OPI | Operating Performance Index |
| OPM | Office of Pest Management |
| OPM | Operations and Personnel Management |
| OPM | Outsourced Program Management |
| OPM | Owner President Management |
| OPM | Owner/President Management |
| OPMA | Open Platform Management Architecture |
| OPMB | Office of Planning Management and Budget |
| OPMC | Ocean Property Management Corporation |
| OPMC | Ontario Project Management Competition |
| OPMC | Oregon Pain Management Commission |
| OPMG | Ontario Property Management Group |
| OPMI | Office of Performance Management and Innovation |
| OPMI | Office of Performance Management Innovation |
| OPMI | Our Planet Management Institute |
| OPMN | Oracle Process Management and Notification |
| OPMS | One Page Management System |
| OPMS | Online Performance Management System |
| OPMS | Onsite Personnel Management Systems |