| Acronym | Definition |
|---|
| OSL➣Open Source Lab |
| OSL➣Optically Stimulated Luminescence |
| OSL➣Office of Student Life |
| OSL➣Open Shading Language (computer project) |
| OSL➣Our Savior Lutheran (various locations) |
| OSL➣Oregon State Library |
| OSL➣Open Source License |
| OSL➣Object Source Lighting (painting) |
| OSL➣Optimization Solutions Library |
| OSL➣Open Source Law |
| OSL➣Open Software License |
| OSL➣Operating System Loader |
| OSL➣Open Source Learning |
| OSL➣Open Subscription License |
| OSL➣Osl Setup Lite |
| OSL➣Office of Service Learning (various locations) |
| OSL➣One Sided Love |
| OSL➣Open Subscription License (intellectual property) |
| OSL➣Ontario Safety League (est. 1913; Canada) |
| OSL➣Order of St. Leonard (Christianity) |
| OSL➣On-Site Laboratory |
| OSL➣Oriented Strand Lumber |
| OSL➣Order of St Luke the Physician |
| OSL➣Operation Starting Line (prison fellowship) |
| OSL➣Offshore Systems Ltd. (Canada) |
| OSL➣Optical Stimulated Luminescence |
| OSL➣One Solution Logistics (Indiana) |
| OSL➣Order of Saint Luke |
| OSL➣Outstanding Leg (structural engineering) |
| OSL➣Orbital Satellite Laser (gaming) |
| OSL➣Oud Strijders Legioen (Dutch) |
| OSL➣Open-Short-Load (electronic calibration) |
| OSL➣Oregon Short Line Railroad |
| OSL➣Optimum Stimulation Level (marketing) |
| OSL➣Ontrack Systems Limited (India) |
| OSL➣One Sexy Lady |
| OSL➣Oslo, Norway - Gardermoen (Airport Code) |
| OSL➣OnGameNet Star League (Korean pro-gaming competition) |
| OSL➣Orbiting Solar Laboratory |
| OSL➣Observed Safe Level |
| OSL➣Office of Space Launch (National Reconnaissance Office) |
| OSL➣Off Scale Low (NASA) |
| OSL➣Urban Open Space Leadership Institute (North Carolina) |
| OSL➣Open Space Laboratory (Tsukuba Research Center, Japan) |
| OSL➣Oceanographic Systems Laboratory |
| OSL➣On Scene Leader |
| OSL➣Operational Safety Limit |
| OSL➣Outside Length |
| OSL➣Overlay Service Layer |
| OSL➣Officer of the Order of St. Lazarus |
| OSL➣Operations Service Leader |
| OSL➣Orbiting Space Laboratory |
| OSL➣Operational Site Layout |
| OSL➣Over the Side Launch (tube launch torpedo) |
| OSL➣Outsourced Sales Leadership (various companies) |
| OSL➣Outdoor Stream Laboratory (Minnesota) |