WCS may refer to:
- Waste Control Specialists, a nuclear waste disposal company
- West Coast Swing, a swing dance
- Wildlife Conservation Society, a US based international wildlife organisation
- Wireless Communication Services, a US FCC band plan around 2.3 GHz
- World Cosplay Summit, an annual international cosplay event
Computing and technology:
- Warehouse control system, a software application that directs the real-time activities within warehouses and distribution centers
- Waste Collection System, the space toilet used on the Space Shuttle
- Web Coverage Service, part of a specification for Internet map services
- Windows Color System, a software color management technology in Windows Vista and onwards
- Writeable Control Store, memory used to load the operating system of the Amiga 1000
Education:
- Whitinsville Christian School, a school in Whitinsville, MA
- Wichita Collegiate School, a private, college preparatory school in Wichita, KS
- Williamson County Schools, a school district in Tennessee
- Wycliffe Christian School, a school in Warrimoo, NSW
- Wells Cathedral School, a school in Wells, Somerset