| Abbreviation | Definition |
|---|---|
| RTBA | Ridley Township Business Association |
| RTBA | Right To Bear Arms |
| RTBA | Room to Be Announced |
| RTBB | Radio Television Burundi Bwiza |
| RTBB | Raising The Breeder Bar |
| RTBB | Rancangan Tanam Baru Berkelompok |
| RTBB | Red to be Blue |
| RTBB | Rolling Thunder Book Bus |
| RTBC | Ross Tilley Burn Centre |
| RTBI | Real Time Bridge Interface |
| RTBL | Rate To Bottom Line |
| RTBN | Replace the Bridge Now |
| RTBS | Radio Talking Book Services |
| RTBS | Real Time Bidding System |
| RTBS | Return to Bay Street |
| RTBT | Real Time Background Tracer |
| RTBT | Red Team Blue Team |
| RTC | Race Touring Car |
| RTC | Rails to Trails Conservancy |
| RTC | Rails to Trails Conservancy's |