| Abbreviation | Definition |
|---|---|
| RNI | Reality Not Included |
| ROC | Restoration Of Color |
| ROFL | Repeat Only Four Lines |
| ROH | Royal Opera House |
| ROS | Room Only to Stand |
| ROTEL | Really Outstanding Theater Entertainment Liveliness |
| ROTEL | Really Outstanding Theater Entertainment & Liveliness |
| RPAC | Ridgewood Performing Arts Center |
| RPS | Role Playing Sage |
| RRE | Rail Road Earth |
| RRMB | Raiford Rogers Modern Ballet (Santa Monica, CA) |
| RSC | The Royal Shakespeare Company |
| RSCDS | Royal Scottish Country Dance Society |
| RSPA | Rapids School of Performing Arts |
| RSPA | Ridgefield Studio of Performing Arts |
| RSS | Real Sailor Senshi |
| RST | Right Sides Together |
| RSVP | Reserved Seating & Valet Parking |
| RT | Repertory Theater |
| RTAA | Roseville Theatre Arts Academy |