| Term | Full Form | Category |
|---|---|---|
| OPSL | Old Plank Sonic Laboratories | Others |
| OPSL | Open and Prepay Station List | Others |
| OPSL | Opes Prime Stockbroking, Limited | Others |
| OPSL | Optically Pumped Semiconductor Laser | Others |
| OPSL | Oregon Premier Soccer League | Others |
| OPSL | Orlando Pro Summer League | Others |