IDL

IDL may refer to:

Computing

• Interface description language, any computer language used to describe a software component's interface
  • IDL specification language, the original IDL created by Lamb, Wulf and Nestor at Queen's University, Canada
  • OMG IDL, an IDL standardized by Object Management Group selected by the W3C for exposing the DOM of XML, HTML, CSS, and SVG documents
  • Microsoft Interface Definition Language, an extension of OMG IDL for supporting Microsoft's DCOM services
• Interactive Data Language, a data analysis language popular for science applications
• ICAD Design Language, a knowledge-based engineering language used with the software ICAD

Places

• John F. Kennedy International Airport, formerly named Idlewild Airport with IATA airport code IDL
• Indianola Municipal Airport, by FAA airport code
• Inner Dispersal Loop, the common name of Interstate 444, a highway in downtown Tulsa, Oklahoma

Other uses

• International Date Line, the time zone date boundary
• Intermediate-density lipoprotein
• International Drivers License
• International Darts League, a defunct major darts tournament
• IDL Drug Stores, a now-defunct independent drug store cooperative
• Internet Defense League, a website