| OPF | Office for Postdoctoral Fellows 
| Others |
| OPF | Official Personnel File
| Others |
| OPF | Official Personnel Folder
| Others |
| OPF | Official Personnel Folders
| Others |
| OPF | Oklahoma Performance Fords
| Others |
| OPF | On The Plant Floor
| Others |
| OPF | One Piece Flange
| Others |
| OPF | One Piece Folder
| Others |
| OPF | Online Prediction Framework
| Others |
| OPF | Onshore Processing Facility
| Others |
| OPF | OpaLocka Airport, Miami, Florida
| Others |
| OPF | Open Package Format
| Others |
| OPF | Open Packaging Format
| Others |
| OPF | Open Path Font
| Others |
| OPF | Open Payment Framework
| Others |
| OPF | Open Payments Framework
| Others |
| OPF | Open Pension Fund
| Others |
| OPF | Open Planets Foundation
| Others |
| OPF | Open Preservation Foundation
| Others |
| OPF | OPEN Process Framework
| Others |
| OPF | Operation Plan Framework
| Others |
| OPF | Optimal Power Flow
| Others |
| OPF | Optimization Problem Format
| Others |
| OPF | Optimum Path Forest
| Others |
| OPF | Optoelectronic Processing Facility
| Others |
| OPF | Orangutan Protection Foundation
| Others |
| OPF | Orbiter Processing Facility
| Others |
| OPF | Orchestra Parents And Friends
| Others |
| OPF | Order Processing Fee
| Others |
| OPF | Ordnance Parachute Factory
| Company, Military, Defence, Weapon, Manufacturing |
| OPF | Ore Processing Facilities
| Others |
| OPF | Oregon Psychoanalytic Foundation
| Others |
| OPF | Organic Phase Fluid
| Others |
| OPF | Organizational Process Focus
| Others |
| OPF | Oriental Pacific Futures
| Others |
| OPF | Orlin P Fay
| Others |
| OPF | Orthodox Peace Fellowship
| Others |
| OPF | Otto Partikel Filter
| Others |
| OPF | Ounce of Prevention Fund
| Others |
| OPF | OutPost of Freedom
| Others |
| OPF | Output Phase Fault
| Others |
| OPF | Overactive Pelvic Floor
| Others |
| OPF | Overseas Pakistani Foundation
| Others |
| OPF | Overseas Pakistanis Foundation
| Others |
| OPF | Overseer Plug-in File
| Others |