ACWA may refer to:
ACWA, environmental company acquired by Consolidated Contractors Company ACWA Power, the energy division of the Saudi Arabian Al-Muhaidib group of companies ACWA Services Ltd., UK based water treatment company Advisory Committee on Works of Art, committee of the UK houses of Parliament Adventist College of West Africa, predecessor of Babcock University, a religiously founded Nigerian university Alberta Co-operative Wholesale Association, a Canadian Cooperative enterprise Amalgamated Clothing Workers of America, US labor union American Catch Wrestling Association, an organization for catch wrestling founded by MMA fighter Josh Barnett American Civil War Association of Northern and Central California, American Civil War reenactment group Program Executive Office, Assembled Chemical Weapons Alternatives, department of the US Army responsible for chemical weapons decommissioning Association of California Water Agencies, coalition of public water agencies supplying water in California