CWS may refer to:
Environment Canadian Wildlife Service, part of Environment and Climate Change Canada Currumbin Wildlife Sanctuary, Queensland, Australia County Wildlife Site, local reserve status
Baseball Chicago White Sox, a Major League Baseball team College World Series, the eight-team final phase of the annual NCAA Division I baseball tournament Caribbean World Series, a yearly tournament
Cooperatives Church World Service, a cooperative humanitarian ministry The Co-operative Group, formerly Co-operative Wholesale Society, a consumer co-operative in the United Kingdom Co-operative wholesale society, a form of co-operative federation
Technology Centralne Warsztaty Samochodowe, a Polish pre-war automobile manufacturer CWS T-1, the first serially built car manufactured in Poland Control Wheel Steering, an autopilot mode where the pilot controls the autopilot through the yoke CoolWebSearch, spyware
Military Chemical Warfare Service, a U.S. Army service branch, later known as Chemical Corps Commander's Weapon Station, the aiming and firing system for the Commander's machine gun on the M1 Abrams tank
Other Calfrac Well Services, an oilfield servicing company Celebrity worship syndrome, an obsessive-addictive disorder in which a person becomes overly involved with the details of a celebrity's personal life Christian Worship: Supplement, a hymnal used by the WELS Chronic wasting disease, a transmissible disease affecting deer and other cervid animals Compressed work schedule, a term for the four-day workweek
See also CWSDPMI, a DOS extender by Charles W. Sandmann