| SS | Sewage Sludge | - | Computer Acronyms(common) |
| SS | Space Station | - | Computer Acronyms(common) |
| SS | Split-shell (gaussian Basis Set) | - | Computer Acronyms(common) |
| SS | Stainless Steel | - | Computer Acronyms(common) |
| SS | Suspended Solids | - | Computer Acronyms(common) |
| SS | Social Services | - | Medical(slang) |
| SS | Shuttle System | - | Organizations |
| SS | Single Sideband | - | Organizations |
| SS | Single String | - | Organizations |
| SS | Space Shuttle | - | Organizations |
| SS | Space Station | - | Organizations |
| SS | Station Set | - | Organizations |
| SS | Subsystem | - | Organizations |
| SS | Sunset | - | Organizations |
| SS | System Software | - | Organizations |
| SS | System Specification | - | Organizations |
| SS | System Summary | - | Organizations |
| SS | Sand Storm (METAR Code) -Schutzstaffel (Nazi Elite Praetorian Guard) -U.S. Secret Service - Spanish Ship - Stainless Steel - Stockholm Skins -Submarine (US Navy Hull Classification) -Super Sport - Surface-to-Surface (missile) | - | Astronomy |
| SS | Swati Language (ISO 639-1 Code) | - | Astronomy |
| SS | Storage Services
| - | Human Genome |
