| OPPM | Occupational Performance Process Model 
| Others |
| OPPM | Office of Performance and Personnel Management
| Others |
| OPPM | Office of Planning and Performance Management
| Others |
| OPPM | Office of Planning and Performance Measurement
| Others |
| OPPM | Office of Policy and Project Management
| Others |
| OPPM | Office of Procurement and Property Management
| Others |
| OPPM | One Page Project Manager
| Others |
| OPPM | One Post Per Minute
| Others |
| OPPM | One-Page Project Manager
| Others |
| OPPM | Open Prefascial Polypropylene Mesh
| Others |
| OPPM | Operating Policies and Procedures Memorandum
| Others |
| OPPM | Operating Policy and Procedure Manual
| Others |
| OPPM | Oracle Primavera Portfolio Management
| Others |
| OPPM | Organisational Policies and Procedures Manual
| Others |
| OPPM | Overlapping Pulse Position Modulation
| Others |