| Abbreviation | Definition |
|---|---|
| RHV | Red Hat Virtualization |
| RI | Re-Installing |
| RI | Rollback Info |
| RI8 | Real Imager 8 |
| RIM | Rule Implementation Module |
| RIMM | Removal, Installation, Migration, and Maintenance |
| RISE | Realistic Image Synthesis Engine |
| RISE | Research in Software Engineering |
| RISE | RPG Interactive Source Editor |
| RISP | Richard Spiros |
| RKR | RootkitRevealer |
| RKS | Record Keeping System |
| RL | Refinement Language |
| RL | Requirements Language |
| RLANG | "R" Language |
| RLD | Reel Loader Driver |
| RLE | Run Language Encoding |
| RLF | Replication Licensing Factor |
| RLS | Rainbow Lake Software |
| RLU | Really Lousy Utility |