| RDB | Radio Button 
| Others |
| RDB | Radiological Devices Branch
| Others |
| RDB | Rahul Dev Burman
| Others |
| RDB | Random Drunk Bear
| Others |
| RDB | Re- Discovering Birth
| Others |
| RDB | React Day Berlin
| Others |
| RDB | Real Development Beta
| Others |
| RDB | Rear Disc Brakes
| Others |
| RDB | Reboot Data Byte
| Others |
| RDB | Receive Data Buffer
| Others |
| RDB | Receptor Data Base
| Others |
| RDB | Red Dog, Alaska USA
| Others |
| RDB | Redis Back-Up
| Others |
| RDB | RediStart Digital with integral Bypass
| Others |
| RDB | Refined Deodorised And Bleached
| Others |
| RDB | Regional Development Bank
| Others |
| RDB | Relation Descriptor Block
| Others |
| RDB | Relational Data Base
| Others |
| RDB | Relative Data Base
| Others |
| RDB | Religion Database
| Others |
| RDB | Remote Data Base
| Others |
| RDB | Renault Do Brasil
| Others |
| RDB | Replace Database with Blanks
| Others |
| RDB | Requirements Data Base
| Others |
| RDB | Research and Development Board
| Others |
| RDB | Resource Data Base
| Others |
| RDB | Respiratory Diseases Branch
| Others |
| RDB | Rhythm Dhol Bass
| Others |
| RDB | Rigid Disk Block
| Others |
| RDB | Ring and Double Bond
| Others |
| RDB | Road Data Base
| Others |
| RDB | Robin Des Bois
| Others |
| RDB | Roll Diffusion Bonding
| Others |
| RDB | Royal Danish Ballet
| Others |
| RDB | Run Disk Backwards
| Others |
| RDB | Rural Development Bank
| Others |
| RDB | Rwanda Development Board
| Others |