| RDL | Radio Design Laboratory 
| Others |
| RDL | Radio Design Labs
| Others |
| RDL | Raleigh Dart League
| Others |
| RDL | Rallye Du Limousin
| Others |
| RDL | Readers of Dalai Lama
| Others |
| RDL | Real Dodgeball League
| Others |
| RDL | Really Delayed Log
| Others |
| RDL | Rear Differential Lock
| Others |
| RDL | Record Definition Language
| Others |
| RDL | Reference Data and Class Library
| Others |
| RDL | Reference Datum Line
| Others |
| RDL | Refrigerated Display Lighting
| Others |
| RDL | Refrigeration Distributors Ltd
| Others |
| RDL | Reimer Digital Library
| Others |
| RDL | Relational Database Language
| Others |
| RDL | Remote Digital Loopback
| Others |
| RDL | Remote Door Lock
| Others |
| RDL | Report Definition Language
| Others |
| RDL | Report Defintion Language
| Others |
| RDL | Required Delimiter
| Others |
| RDL | Research and Development Laboratory
| Others |
| RDL | Research Depository Library
| Others |
| RDL | Resource Description Language
| Others |
| RDL | Reusable Data Language
| Others |
| RDL | Rheumatology Diagnostics Laboratory
| Others |
| RDL | Rich Directory Listings
| Others |
| RDL | Road Delays Late
| Others |
| RDL | Road Liner
| Others |
| RDL | ROFA Data Logger
| Others |
| RDL | Romanian Dead Lift
| Others |
| RDL | Rule Description Language
| Others |
| RDL | Running Day Lights
| Others |
| RDL | Russellville Dental Lab
| Others |
| RDL | Russo, Darnell, and Lodato LLP
| Others |