DDL

DDL may refer to:

Technology

 * Data definition language or data description language, relating to databases
 * Description Definition Language, part of the MPEG-7 standard
 * Device Description Language, related to field devices for process and factory automation
 * Digital data logger, a type of data logger, an electronic device that records data over time or in relation to location
 * Direct download link, hyperlink for file downloads
 * Dolby Digital Live, real-time audio compression
 * Drop-down list, graphical user interface control element
 * An acronym for the Australian light destroyer project

People

 * Daniel Day-Lewis, actor

Businesses

 * Det Danske Luftfartselskab, Danish airline
 * Dutch Defence League, a Dutch offshoot of the English Defence League

Other

 * Data-driven learning, an approach to learning foreign languages
 * Den Danske Landinspektørforening, the Danish Association of Chartered Surveyors