| Acronym | Definition |
|---|
| OKL➣Oakville (Amtrak station code; Oakville, Canada) |
| OKL➣Otto Kuhlmann Langelsheim (automotive parts; Germany) |
| OKL➣Oberkommando der Luftwaffe (High Command of the German Air Force, WWII) |
| OKL➣Open Kernel Labs (Australian software company) |
| OKL➣Otava-Kuvalehdet Oy (Finnish Publishing Company; Helsinki, Finland) |