RDC
- Budd Rail Diesel Car
- Central African Democratic Rally
- Democratic Republic of the Congo
- RDCWorld
- Radio Drama Company
- Railroad Development Corporation
- Red Deer College
- Redditch railway station
- Redenção Airport
- Regional Development Corporation
- Remote Desktop Services
- Remote Differential Compression
- Remote deposit
- Representative Democratic Council
- Research Diagnostic Criteria
- Residual dipolar coupling
- Roblox
- Roblox Corporation
- Rural district