ACW may refer to:
- After Call Work, a metric in BPO industries/call centers
- American Civil War, a war fought in the United States from 1861 to 1865
- Air Control Wing, E.g.:
- Acorn Cambridge Workstation, a microcomputer produced by Acorn Computers
- Aircraft Control and Warning, for example at Grenier Air Force Base
- Arts Council of Wales, a Welsh Government sponsored body
- Hejazi Arabic, a dialect of the Arabic spoken in the western region of Saudi Arabia
- Anarchy Championship Wrestling, a professional wrestling organization in Austin, Texas
|This disambiguation page lists articles associated with the title ACW.
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