| Abbreviation | Definition |
|---|---|
| RG | Radio Guide |
| RG | Resource Guide |
| RGA | Real-time Graphics and Audio |
| RGB | Red Green Blue |
| RGJ | Reno Gazette-Journal |
| RGM | Resolution of Great Mysteries |
| RGM | Reverence Gospel Media |
| RGQ | Responsible Gaming Quarterly |
| RGR | RetroGaming Radio |
| RGT | Rolling Good Times |
| RGZ | Radio Ground Zero |
| RH | Radio Heacock |
| RH | Ringenes Herre (movie) |
| RHB | Rights Holding Broadcaster |
| RHC | Radio Habana Cuba |
| RHE | Rhetoric |
| RHI | Radio Haiti Inter |
| RHPS | (The) Rocky Horror Picture Show |
| RHR | Ron Hermione Romance |
| RIAA | Radio Industry Association of America |