CWU may refer to:

Trade unions

  • Christian Workers' Union, Belize
  • Communication Workers Union (Ireland)
  • Communication Workers Union (South Africa)
  • Communication Workers Union (Trinidad and Tobago)
  • Communication Workers Union (United Kingdom)
  • Communication Workers Union of Australia
  • Congressional Workers Union, United States
  • Culinary Workers Union, United States

Universities

  • Central Washington University, Ellensburg, Washington, United States
  • Central Women's University, Dhaka, Bangladesh
  • China Women's University, Beijing, China

Other

  • Church Women United, United States, an ecumenical association
  • Colliers Wood United F.C., London, England
  • Crowhurst railway station, England
  • Czechoslovak Women's Union
  • Wuhan Airlines, China