| Acronym | Definition |
|---|
| RFR | Request for Review |
| RFR | Request for Requisition |
| RFR | Radio Frequency Radiation |
| RFR | Ready for Review (various organizations) |
| RFR | Request For Resources |
| RFR | Ready for Receiver (radio) |
| RFR | Right of First Refusal |
| RFR | Risk-Free Rate (investing) |
| RFR | Request for Resolution (various locations) |
| RFR | Request for Rate (shipping) |
| RFR | Radio Free Roscoe (TV show) |
| RFR | Red Flags Rule (identity protection; US FTC) |
| RFR | Resting Full Cycle Ratio (cardiology) |
| RFR | Rio Frio, Costa Rica (Airport code) |
| RFR | Regional Fast Rail (Australia) |
| RFR | Receive Frame Reference |
| RFR | Really Fast Robot |
| RFR | Royal Air Force UK (ICAO code) |
| RFR | Rapid Facial Reaction |
| RFR | Restauration Fonctionnelle du Rachis (French: Functional Restoration of the Spine) |
| RFR | Run-From-RAM (Cisco) |
| RFR | Ready for Release |
| RFR | Rassemblement des Femmes Républicaines (French: Rally of Republican Women) |
| RFR | Request for Repair |
| RFR | Request for Referrals |
| RFR | Reduced Force Rehearsal (US Army) |
| RFR | Rise from Ruins (band) |
| RFR | Reason for Resource |
| RFR | Router Failure Recovery |
| RFR | Ready For Recheck |
| RFR | River Falls Rideshare (Wisconsin) |
| RFR | Run for Record |
| RFR | Reverse Flow Regeneration (ion exchange) |