CWA can stand for:

• CEN Workshop Agreement, a reference document from the European Committee for Standardization
• Central Wisconsin Airport - the IATA code.
• Chemical weapon agent
• Christian Wrestling Alliance - Independent Wrestling Promotion Based in in Orangeburg, South Carolina, USA
• Christian Wrestling Association- Fantasy stories and rosters written
• Civil Works Administration, a New Deal-era agency in the United States
• Clean Water Act, an environmental law in the United States
• Closed World Assumption a formalisms of knowledge representation
• Communications Workers of America, a labor union
• Concerned Women for America, a conservative Christian group active in politics in the United States
• Continental Wrestling Association, based in Memphis, United States
• the Country Women's Association of rural Australia
• The Crime Writers' Association of Britain