| Acronym | Definition |
|---|
| RSSL➣Reading Scientific Services Ltd (UK) |
| RSSL➣Retirement and Social Security Law (New York) |
| RSSL➣Reading Scientific Services Limited (commercial laboratory; UK) |
| RSSL➣Radio Society of Sri Lanka |
| RSSL➣Richmond Senior Soccer League (est. 1960; British Columbia, Canada) |
| RSSL➣Reliance Security Services Ltd. (UK) |