RD
- R&D – (i) Research & Development
- RD – Radio Disney
- RDA
- (i) Research, Development, and Acquisition
- Recommended Daily Allowance (Nutrition)
- RDD – (i) Radiological Dispersion Device
- RDDL – (a/i) Resource Directory Description Language ("riddle")
- RDECOM – (p) (U.S. Army) Research, Development and Engineering Command
- RDM – (i) Remotely Delivered/Deliverable Mine
- RDO
- (i) Rapid, Decisive Operation(s)
- Regular Day Off
- Remote Data Objects
- RDS
- (i) Remote Desktop Services (Microsoft service)
- Réseau des sports (French, "Sports Network" — Canadian French-language TV channel)
- Respiratory distress syndrome
- Royal Dublin Society (see also RDS Arena, a stadium on the grounds often called "the RDS")
- RDT – (i) Remote Digital Terminal
- RDTE or RDT&E – (i) Research, Development, Test, and Evaluation
- RDV – (i) Remote Detection Vehicle
Read more about this topic: List Of Acronyms And Initialisms: R