| Abbreviation | Definition |
|---|---|
| RDN | Reporting Diversity Network |
| RDO | Regular Day Off |
| RDO | Relished Day Off |
| RDRP | Rapid Debt Repayment Plan |
| RDS | Retail Decision Suite |
| RDT | Research, Development, and Test |
| RDTR | Research Division Technical Report |
| RDX | Research and Development Xtreme |
| RE | Relative Efficiency |
| REACH | Raising Employee Awareness Of Community Hardships |
| REACH | Respect Enthusiasm Able Caring Helpers |
| READ | Rapid Engineering Application Development |
| REAL | Resources, Events, Agents, and Locations |
| REAP | Relating Extending Actualizing And Profiting |
| REC2REC | RECruitment To RECruitment |
| RECO | Recommendation |
| RECPT | Receipt |
| RECS | Re Engineered Composite System |
| RECS | Renewable Energy Certificate System |
| RED | Register Of Employees Dismissed |