| Acronym | Definition |
|---|
| RGR | Roger |
| RGR | Rangers (US DoD) |
| RGR | Royal Gurkha Rifles (British regiment) |
| RGR | Relative Growth Rate |
| RGR | Royal Gibraltar Regiment (UK; more commonly seen as RG) |
| RGR | Retinal G Protein Coupled Receptor |
| RGR | Returned Goods Relief (UK) |
| RGR | Rassemblement des Gauches Républicaines (France; Assembly of Republican Leftists) |
| RGR | Russian Guild of Realtors |
| RGR | Royal Gorge Rafting (Colorado) |
| RGR | Ray Gun Revival (online science fiction magazine) |
| RGR | Regional Rail |
| RGR | Regular Grid Road |
| RGR | Retro Gaming Revival (UK) |
| RGR | Rapid Ground Refueling |
| RGR | Random Group Resampling |
| RGR | Retro Gaming Radio (online gaming radio show) |
| RGR | Resurrection: Global Reincarnation |
| RGR | Range Gated Receiver |
| RGR | Rumble Goat Racing (Richland, WA) |
| RGR | Ranger Girls Run |