| Abbreviation | Definition |
|---|---|
| RAP | Rhythmic American Poetry |
| RAR | Rock Am Ring |
| RASTA | Rightious Apostolic Saving The Almighty |
| RATM | Rage Against The Machine |
| RATM | Raging Angry Teenage Music |
| RB | Rock Band |
| RBA | Redwood Bluegrass Associates |
| RBA | Roxbury Blues Aesthetic |
| RBC | Rhythm-Based Communication |
| RBCB | Red Bluff Community Band |
| RBCS | Rock and Blues Custom Show |
| RBG | Revolutionary But Gangsta |
| RBGB | Red, Black Green: a Blues |
| RBGB | Red, Black & Green: a Blues |
| RBH | Rhumbox Hill speakers |
| RBM | Records By Mail |
| RBMA | Red Bull Music Academy |
| RBMG | Rubber Band machine Gun |
| RBMG | Rubber Band Machine Guns |
| RBNX | Raddigan Brothers Noise Experience |