| Abbreviation | Definition |
|---|---|
| SAS | Synthetic Aperture Sonar |
| SAS | System Analysis and Simulation |
| SASB | Salvation Army Song Book |
| SASC | Senate Armed Services Committee |
| SASC | Special Air Service Clan |
| SASF | SIDPERS Authorized Strength File |
| SASF | South African Special Forces |
| SASN | System Assigned Serial Number |
| SASO | Stability and Support Operations |
| SASP | Special Ammunition Supply Point |
| SASR | Special Air Services Regiment |
| SASS | Semi-Auto Sniper System |
| SASS | Standard Army Survivable Shelter |
| SASS | Supporting Arms Special Staff |
| SASSY | Supported Activities Supply Systems |
| SAT | Satellite |
| SAT | Security Alert Team |
| SAT | Security Assistance Test |
| SAT | Security Audit Trail |
| SAT | Small Arms Trainer |