| Acronym | Definition |
|---|
| ACW | Arts Council of Wales |
| ACW | American Civil War |
| ACW | Arts Council of Wales (UK) |
| ACW | Air Control Wing |
| ACW | After Call Work (call centers) |
| ACW | Alliance for Computers and Writing |
| ACW | Antarctic Circumpolar Wave |
| ACW | African Centre for Women |
| ACW | Anarchy Championship Wrestling (Texas) |
| ACW | Advanced Conventional Weapons |
| ACW | Aircraftwoman |
| ACW | American Championship Wrestling |
| ACW | Asylum Championship Wrestling (Colorado Springs, CO) |
| ACW | Accessibility Wizard Settings (Microsoft XP file extension) |
| ACW | Air Commando Wing |
| ACW | Athletik Club Wrestling (Germany) |
| ACW | Active Content Wizard (Microsoft Vista) |
| ACW | Asbestos Containing Waste |
| ACW | Association of Community Workers (UK) |
| ACW | Aircraft Control & Warning |
| ACW | Anterior Chest Wall |
| ACW | Association Campanaire Wallonne (French: Campanarian Association of Wallonia; Belgium) |
| ACW | Anglian Championship Wrestling (UK) |
| ACW | Anglican Church Worldwide |
| ACW | All Companies Working (firefighting) |
| ACW | All Comments Welcome (Internet slang) |
| ACW | Artificial Climbing Wall |
| ACW | Air Coupled Woofer (audio engineering) |
| ACW | Advocates for Congolese Women (University of California, Santa Cruz) |
| ACW | Audio Chord Wizard (Band in a Box) |
| ACW | Acceptance of Completed Work |
| ACW | Australian Corporate Writing (Australia) |
| ACW | Athlétique Club de Wambrechies (French: Wambrechies Athletic Club; Wambrechies, France) |
| ACW | Aircharter World (Pleasant Hill, CA) |
| ACW | Augmenting Charge Warhead |
| ACW | Alternating Continuous Wave |
| ACW | Anticarrier Warfare |
| ACW | Actual Captures Worksheet (Sprint) |
| ACW | Always Consistent With (shipping) |
| ACW | Autocenter Werkstattpartner Gmbh (German automobile dealership) |
| ACW | American Cord & Webbing (Woonsocket, RI) |
| ACW | All Country World (market index) |