| Abbreviation | Definition |
|---|---|
| RTS | Really Tough Stuff |
| RTS | Recruit Training School |
| RTS | Regional Training Site |
| RTS | Remote Transfer Switch |
| RTS | Requirements Tracking System |
| RTSA | Real Time Situational Awareness |
| RTSA | Real Time Spectrum Analyzer |
| RTSC | Recruitment Training and Support Center |
| RTSH | Recovery Training and Self-Help |
| RTSM | Regional Training Site - Maintenance |
| RTSS | Real Time Simulation System |
| RTT | Radio Type Tested |
| RTT | Rat-a-Tat Tat |
| RTT | Real Time Tactical |
| RTT | Real- Time Training |
| RTTY | Radio Teletype |
| RTU | Ready To Use |
| RTU | Receiving Transfer Unit |
| RTU | Returned To Unit |
| RTUF | ready-to-use therapeutic food |