| OPL | Oakland Public Library 
| Others |
| OPL | Object Per Line
| Others |
| OPL | Obvious Panty Line
| Others |
| OPL | Ocean Physics Laboratory
| Others |
| OPL | Oceanic Pro League
| Others |
| OPL | Off premises Laundry
| Others |
| OPL | Office of PLanning
| Others |
| OPL | Offshore Port Limit
| Others |
| OPL | Oh Pee Live
| Others |
| OPL | Ohio Prospects League
| Others |
| OPL | Oil Pressure Light
| Others |
| OPL | Oil Pressure Low
| Others |
| OPL | Oil Prospecting Licence
| Others |
| OPL | Oilfield Publications Limited
| Others |
| OPL | Oklahoma Premier League
| Others |
| OPL | Old Parochial League
| Others |
| OPL | Old Persian Lady
| Others |
| OPL | Old Princeton Landing
| Others |
| OPL | Old Pushy Liturgist
| Others |
| OPL | Omaha Public Library
| Others |
| OPL | On Premise Laundry
| Others |
| OPL | On Premises Laundry
| Others |
| OPL | One Person Librarian
| Others |
| OPL | One Point Loss
| Others |
| OPL | Online Price Lists
| Others |
| OPL | Online Psychology Laboratory
| Others |
| OPL | Opelousas, Louisiana USA
| Others |
| OPL | Open and Park Land
| Others |
| OPL | Open Part Library
| Others |
| OPL | Open Parts Library
| Others |
| OPL | Open Problem List
| Others |
| OPL | Open Programming Language
| Others |
| OPL | Open Proxy List
| Others |
| OPL | Open PS2 Loader
| Others |
| OPL | Open Publication License
| Others |
| OPL | Open Publishing License
| Others |
| OPL | OPerationaL
| Others |
| OPL | Operations Per Location
| Others |
| OPL | Operator Performance Laboratory
| Others |
| OPL | Operator Plmn List
| Others |
| OPL | OPL language source code file (Psion)
| Others |
| OPL | Optical Liquid Level Sensor
| Others |
| OPL | Optical Path Length
| Others |
| OPL | Optically Pumped Laser
| Others |
| OPL | Optimization Programming Language
| Others |
| OPL | Optimized Packaging Line
| Others |
| OPL | Optimum Performance Level
| Others |
| OPL | Optomized Pulsed Light
| Others |
| OPL | Oregon Premier League
| Others |
| OPL | Organiser Programming Language
| Others |
| OPL | Orwin Products Ltd
| Others |
| OPL | OSHPD Preapproved Laboratory
| Others |
| OPL | Other Party Liability
| Others |
| OPL | Otolaryngology Physicians of Lancaster
| Others |
| OPL | Ottawa Public Library
| Others |
| OPL | Out-migration Population Loss
| Others |
| OPL | Outer Port Limit
| Others |
| OPL | Output Protection Limiter
| Others |
| OPL | Outside Port Limit
| Others |
| OPL | Over Prescribed Limit
| Others |
| OPL | Overpressure Protection Limit
| Others |
| OPL | Override Phone Location
| Others |
| OPL | Overseas Partners, Ltd.
| Others |
| OPL | Oxygenation Portable Laboratory
| Others |