| ACWA | Administrative Careers With America 
| Others |
| ACWA | Advancing Canadian Wastewater Assets
| Others |
| ACWA | Advisory Committee on Works of Art
| Others |
| ACWA | Aerohive Certified Wireless Administrator
| Others |
| ACWA | Alaska Clean Water Actions
| Others |
| ACWA | Alaska Clean Water Advocacy
| Others |
| ACWA | Alberta Co-operative Wholesale Association
| Others |
| ACWA | Amalgamated Clothing Workers of America
| Others |
| ACWA | American Civil War Association
| Others |
| ACWA | Applied Cognitive Work Analysis
| Others |
| ACWA | Assembled Chemical Weapons Alternatives
| Others |
| ACWA | Association of California Water Agencies
| Others |
| ACWA | Association of Clean Water Administrators
| Others |
| ACWA | Association of Clean Water Agencies
| Others |
| ACWA | Australian Car Wash Association
| Others |
| ACWA | Automatic Car Wash Association
| Others |