| Acronym | Definition |
|---|
| SSSC | System Structure and Control (International Federation of Automatic Control) |
| SSSC | Scottish Social Services Council (UK) |
| SSSC | Street Sweeper Social Club (Tom Morello and Boots Riley album) |
| SSSC | Supreme State Security Court (Syria) |
| SSSC | Side Street Stop Controlled (traffice safety; California) |
| SSSC | Storage System Standards Committee |
| SSSC | Static Synchronous Series Compensator |
| SSSC | Southwest Student Services Corporation |
| SSSC | Self-Service Supply Center |
| SSSC | Self-Study Steering Committee (various universities) |
| SSSC | Sun Solar System Connection (NASA) |
| SSSC | Swinburne Senior Secondary College (Australia) |
| SSSC | Safe Spine Surgery Centre (India) |
| SSSC | Super Sativa Seed Club |
| SSSC | Student Support Services Center |
| SSSC | Southern States Sign Council (Flowery Branch, GA) |
| SSSC | Surface Subsurface Surveillance Coordinator |
| SSSC | Subsidized Standards Standing Committee |
| SSSC | Space Station Support Center/Complex |
| SSSC | Surface Subsurface Surveillance Control |
| SSSC | Surface Subsurface Surveillance Coordination |
| SSSC | Science of the Soul Study Center |
| SSSC | Serious Sam Second Contact (video game) |
| SSSC | Steel Stringer-Timber Deck Continuous (engineering) |
| SSSC | Superior Suspensory Shoulder Complex |