| IDL | Ian Dury List 
| Others |
| IDL | ICAD Design Language
| Others |
| IDL | Idaho Department of Lands
| Others |
| IDL | Identifier List
| Others |
| IDL | Idle Position Switch
| Others |
| IDL | Illinois Drivers License
| Others |
| IDL | Impaired Driving Law
| Others |
| IDL | Indented Drawing List
| Others |
| IDL | Independent Distance Learning
| Others |
| IDL | Indianola Municipal Airport, Indianola, Mississippi USA
| Others |
| IDL | Indirect Dyslexia Learning
| Others |
| IDL | Indirect Labor
| Others |
| IDL | Inerface Definition Language
| Others |
| IDL | Infectious Diseases Laboratory
| Others |
| IDL | Informatics Discovery Lab
| Others |
| IDL | Initial Display Latency
| Others |
| IDL | Inner Dispersal Loop
| Others |
| IDL | Input Declaration Language
| Others |
| IDL | Institute of Distance Learning
| Others |
| IDL | Instituto Dom Luiz
| Others |
| IDL | Instructional Design and Learning
| Others |
| IDL | Instrument Detection Limit
| Others |
| IDL | Integreted Device Listener
| Others |
| IDL | Inter-Axle Differential Lock
| Others |
| IDL | Interactive Data Lab
| Others |
| IDL | Interactive Data Language
| Others |
| IDL | Interactive Distance Learning
| Others |
| IDL | Interface definition file (Visual C++)
| Others |
| IDL | Interface Definition Language
| Others |
| IDL | Interface Description Language
| Others |
| IDL | Interface Description Languages
| Others |
| IDL | Interface Design Language
| Others |
| IDL | Interfacility Data Link
| Others |
| IDL | Intermediate Density Lipoprotein
| Others |
| IDL | Intermediate Density Lipoproteins
| Others |
| IDL | International Database on Longevity
| Others |
| IDL | International Date Line
| Others |
| IDL | International Day of Light
| Others |
| IDL | International Driver's License
| Others |
| IDL | International Driving License
| Others |
| IDL | Interoperable Data Link
| Others |