| Abbreviation | Definition |
|---|---|
| RLP | Rosella Plains, Queensland, Australia |
| RLT | Arlit, Niger |
| RLU | Barite, Alaska USA |
| RMA | Roma, Queensland, Australia |
| RMD | Ramagundam, India |
| RMG | Rome, Georgia USA |
| RMI | Rimini, Italy |
| RMK | Renmark, South Australia, Australia |
| RMN | Rumginae, Papua New Guinea |
| RMP | Rampart, Alaska USA |
| RMS | Ramstein Airbase, Kaiserslautern, Germany |
| RNB | Ronneby, Sweden |
| RNE | Roanne, France |
| RNH | New Richmond Municipal Airport, New Richmond, Wisconsin USA |
| RNI | Corn Island, Nicaragua |
| RNJ | Yoron-Jima, Japan |
| RNL | Rennell Island, Solomon Islands |
| RNN | Bornholm, Denmark |
| RNO | Reno/ Tahoe Cannon International Airport, Reno, Nevada USA |
| RNP | former code for Rongelap, Marshall Islands |