| Abbreviation | Definition |
|---|---|
| RNR | Revenue Neutral Rate |
| RNR | Reward AND Recognition |
| RNR | Rewards and Recognition |
| RNR | Rhyme N Rhythm |
| RNR | Ringing No Reply |
| RNR | Risk Need Responsivity |
| RNR | Risk Needs Responsivity |
| RNR | Road Not Required |
| RNR | Rob and Randy |
| RNR | Rock N Roll |
| RNR | Rockin N Rollin |
| RNRM | Rock N Roll Mafia |
| RNRM | Royal Navy |
| RNRN | Registered Nurse Response Network |
| RNRT | Royal Naval Reserve Trawler |
| RNS | R N Shetty |
| RNS | R Nosson Slifkin |
| RNS | Radar Navigation Set |
| RNS | Radio Navigation System |
| RNS | Radio Network Subsystems |