| Abbreviation | Definition |
|---|---|
| RRC | Ruby Root Compiler |
| RRD | Reduced Resolution Data |
| RRGM | Recursive Residue Generation Method |
| RRS | Reaction Research Society |
| RRTE | Rulers of Renown -The Emancipation |
| RSA | Rational Software Architect |
| RSAC | Recreational Software Advisory Council |
| RSAT | Regulatory Sequence Analysis Tools |
| RSB | Red Storm Bitmap |
| RSC | Reusable Software Components |
| RSCT | Reliable Scalable Cluster Technology (IBM) |
| RSD | Remote Software Download |
| RSDI | Remote Software Development Inc |
| RSDN | Research Software Development Network |
| RSDN | Russian Software Developer Network |
| RSDN | Russian Software Developers Network |
| RSDP | Repeatable Software Development Process |
| RSE | Research Software Engineer |
| RSF | Regularly-Sampled Format |
| RSHL | Regional Software Holdings Limited |