| Abbreviation | Definition |
|---|---|
| SP | Storm-Petrel Missile |
| SPA | Search Predict Act |
| SPA | Skill Performance Aids |
| SPA | Software Product Assurance |
| SPA | Special Project Aquarius |
| SPA | Special Psychological Operations (PSYOP) Assessment |
| SPA | Submarine Patrol Area |
| SPA | System Performance Analysis |
| SPAAF | South Plains Army Air Field |
| SPACEAF | Space Air Forces |
| SPACECOM | Space Command |
| SPACECON | Control of Space Information |
| SPAG | Submarine Parachute Advisory Group |
| SPAH | Satellite Process Assurance Hub |
| SPAL | Stabilized Platform Airborne Laser |
| SPAL | tabilized Platform Airborne Laser |
| SPAM | SPiced HAM |
| SPAM | Standby Potential Armageddon Meeting |
| SPAPB | Special Purpose Ammunition Process Building |
| SPAR | Semper Paratus Always Ready |