| Acronym | Definition |
|---|
| SSSI➣Site of Special Scientific Interest (British Wildlife and Countryside Act 1981) |
| SSSI➣Site of Special Scientific Interest (under Antarctic Treaty) |
| SSSI➣Solid State Storage Initiative (Storage Networking Industry Association) |
| SSSI➣Steelman Software Solutions, Inc. (Ontario, Canada) |
| SSSI➣Skin and Skin Structure Infection |
| SSSI➣Strategic Security Solutions International (Afghanistan) |
| SSSI➣Soil Science Society of Ireland |
| SSSI➣Signatures, Sensors, and Signal-processing Integration |