| Abbreviation | Definition |
|---|---|
| RTT | Refrigerate Test Time |
| RTT | Refrigerated Test Time |
| RTT | Refrigerator Thermometer Temperature |
| RTT | Remember The Times |
| RTT | Reno Tahoe Tonight |
| RTT | Retail Think Tank |
| RTT | Returning to Teaching |
| RTT | Right To Treatment |
| RTT | Rotterdams Tank Transport |
| RTT | Rout Trip Time |
| RTT | Run The Triangle |
| RTT | Rural training track |
| RTTA | Radial Telescopic Transfer Arm |
| RTTA | Real Time Tuning Analysis |
| RTTA | Reel Time Tuning Analysis |
| RTTA | Romance Through The Ages |
| RTTB | Ramone To The Bone |
| RTTB | Run to the Beat |
| RTTB | Running Trail Travel Bussy |
| RTTC | Rancore Technologies Total Charge |