| Acronym | Definition |
|---|
| SLSL➣Space Life Sciences Lab (NASA; formerly Space Experiment Research and Processing Laboratory |
| SLSL➣South London Special League (UK) |
| SLSL➣St. Louis Subbuteo League (table soccer; St. Louis, MO) |
| SLSL➣Scanning Laser Stimulated Luminescence |
| SLSL➣Simulation and Logistics Systems Laboratory |