DCL

DCL or .dcl may refer to:

• 650 in Roman numerals, see 650 (disambiguation)
• Darc-contest-logbook, see Deutscher Amateur-Radio-Club

Computers

• Data Center Linux, see Open Source Development Labs
• Data Control Language, a subset of SQL
• Dialog Control Language, a language and interpreter within AutoCAD
• DIGITAL Command Language, the command language used by most of the operating systems from the former Digital Equipment Corporation (DEC), now owned by Hewlett-Packard (HP)
• Double-checked locking, a software design pattern
• .dcl, project files for Clean (programming language)
• .dcl, Delphi Control Library files for Embarcadero Delphi

Degrees

• Doctor of Canon Law, for studies of canon law of the Roman Catholic Church
• Doctor of Civil Law, an alternative to the Doctor of Laws (LL.D.) degree

Organizations

• Data Connection Ltd, a former name of Metaswitch
• Detroit College of Law, now known as the Michigan State University College of Law
• Disney Cruise Line, a cruise line company (United States)
• Distillers Company Limited, a producer of spirits

Places

• Deep Creek Lake State Park, a Maryland state park in Garrett County, United States

Science, technology, and medicine

• DCL Technology Demonstrator programme, a torpedo detection system (U.K.)
• Diffuse cutaneous leishmaniasis, a skin infection caused by a parasite
• Direct coal liquefaction

Sports and games

• Dual County League, a high school athletic conference in Massachusetts, United States