CW may stand for:

Science and technology

* centiwatt (cW), one hundredth of a watt * Cω, a programming language * CW complex, a type of topological space * Carrier wave, in radio communications * CodeWarrior, an integrated development environment by Metrowerks * Constructed wetland, a man-made wetland to treat wastewater * Continuous wave, a method of radio transmission (telegraphy) and a microwave theory * ClarisWorks, an office suite now known as AppleWorks * Drag coefficient, a measure of air resistance commonly denoted

\mathbf c_\mathrm w\,

* IEEE 802.11e-2005#Enhanced distributed channel access (EDCA), Contention Window, a network traffic technique * chemical formula of tungsten carbide

Arts and media

Gaming

* ''Castle Wolfenstein'', a 1981 video game * ''Cube World'', a video game

Publications

* ''Computerworld'', an information technology magazine * ''The Crimson White'', a student-run newspaper of the University of Alabama

Other media

* The CW, an American television network/programming service **The CW Plus, a national feed of the network * Creative writing, any writing that goes outside the bounds of normal professional, journalistic, academic, or technical forms of literature * CloverWorks, a Japanese animation studio

Companies

* Cable & Wireless plc, a British telecommunications company * Colonial Williamsburg * Curtiss-Wright, an engineering company (NYSE: CW)

Military

* Chemical warfare, using the toxic properties of chemical substances as weapons * Chemical weapon, munition that uses chemicals formulated to inflict death or harm on humans * Chief warrant officer (when followed by a numerical designation of rank), an officer in a military organisation who is designated an officer by a warrant * Cold War, a state of geopolitical tension following World War II

Places

* CW postcode area around Crewe, England * Canada West, an obsolete designation for the western part of Canada * Canada's Wonderland, an amusement park in Vaughan, Ontario, Canada * Cook Islands (FIPS Pub 10-4 and obsolete NATO designation), a self-governing island country in the South Pacific Ocean * County Carlow, in Ireland * Curaçao (ISO 3166-1 alpha-2 country code CW), a Lesser Antilles island in the southern Caribbean Sea and the Dutch Caribbean region * Calw, a city in southern Germany

Other uses

* Air Marshall Islands (IATA code CW), an airline based in Majuro, in the Marshall Islands * Calendar week * Christian Worship: A Lutheran Hymnal, a hymnal used by the WELS * Clockwise, motion that proceeds in the same direction as a clock's hands * ''Common Worship'', a liturgy of the Church of England * Conventional wisdom, a description of ideas that are generally accepted as true * Cruiserweight (boxing), a weight class in professional boxing between light heavyweight and heavyweight * Content warning * Culture war * C. W. Anderson (born 1970), professional wrestler * A suffix for the cool-white halophoshate fluorescent lamp phosphor. See here: Fluorescent-lamp formats, Fluorescent-Lamp Formats {{Disambiguation, geo