| Acronym | Definition |
|---|
| CWO | Chief Web Officer (corporate title) |
| CWO | Chief Warrant Officer |
| CWO | Current Working Object |
| CWO | Community Welfare Officer (Health Service Executive; Ireland) |
| CWO | Cash With Order |
| CWO | Clockwork Orange (Anthony Burgess book and film) |
| CWO | Cadet Warrant Officer (Air Training Corps) |
| CWO | Conservative Women's Organisation (UK) |
| CWO | Cable & Wireless Optus (Australian telecommunications company; now SingTel Optus) |
| CWO | California and the World Ocean |
| CWO | Contract Weather Observer (US FAA) |
| CWO | Coward's Way Out |
| CWO | Casio World Open (Japan) |
| CWO | Communications Watch Officer |
| CWO | Court Welfare Officer (UK) |
| CWO | Careers Wales Online (UK) |
| CWO | Certified Water Operator (various organizations) |
| CWO | Communist Workers' Organisation (Sheffield, UK) |
| CWO | Commissioned Warrant Officer |
| CWO | Climate/Weather/Ocean Modeling and Simulation |
| CWO | Chief Wine Officer (US and UK) |
| CWO | Championship Wrestling Organization (est. 1995) |
| CWO | Contract Work Order |
| CWO | Combat Wing Organization |
| CWO | Construction Work Order |
| CWO | Custom Work Order (Sprint) |
| CWO | Chief Watch Officer |
| CWO | Cadet Watch Officer |
| CWO | Capital Work Order |
| CWO | Conversion Work Order |
| CWO | Customs World Organization |
| CWO | Corvallis Workstation Operation |
| CWO | Cancel When Out (stock scheduled for deletion) |
| CWO | Creative Work Order (advertising creatives) |