| Abbreviation | Definition |
|---|---|
| RHCP | Red Hot Chili Peppers |
| RHP | Red House Painters |
| RIAK | Recording Industry Association of Korea |
| RIAM | Royal Irish Academy of Music |
| RIC | Righteous In Christ (Gospel rap artist) |
| RIFD | Raleigh International Folk Dancers |
| RIHD | Remote Interactive over HDMI |
| RIJF | Rochester International Jazz Festival |
| RIOM | Renaissance Institute of Music |
| RIP | Rest In Paradise |
| RIP | Rock In Peace |
| RIQ | Egyptian tambourine |
| RISM | Répertoire International des Sources Musicales |
| RISM | Repertoire Internationale Des Sources Musicales |
| RITJ | Rolling In The Junk |
| RJBB | Richmond Junior Brass Band |
| RJC | Reggae, Jazz, and Contemporary |
| RJCB | Junior Concert Band |
| RJM | River Jones Music |
| RJN | Rob J. Nickerson Jazz Band |