| Abbreviation | Definition |
|---|---|
| SLEM | Sporting Law Enforcement Military |
| SLERA | Self-Limiting Explosive Reactive Armour |
| SLF | Standard Linear Format |
| SLF | Strategic Leadership Forum |
| SLGR | Small, Lightweight Ground Receiver (GPS) |
| SLIR | Staring Laser Intercept Receiver |
| SLIT | Serial-Lot Item Tracking |
| SLJO | Shitty Little Jobs Officer |
| SLK | Silk |
| SLM | Sea- Launched Missile |
| SLM | SeaLift Magazine |
| SLM | Secondary Logistics Management |
| SLM | Stock Level Management |
| SLM | Submarine- Launched Missile |
| SLM | System Library Manager |
| SLM | USAF School for Latin America |
| SLMA | Single Line Missile Assembly |
| SLMA | Sri Lanka Military Academy |
| SLMA | Sudanese Liberation Movement Army |
| SLMAB | Single Line Missile Assembly Building |