| Acronym | Definition |
|---|
| DCEO➣Deputy Chief Executive Officer (various organizations) |
| DCEO➣Department of Commerce and Economic Opportunity (Illinois) |
| DCEO➣Defensive Cyber Effects Operations |
| DCEO➣Division Coloniale d'Extrème-Orient (French infantry division) |
| DCEO➣District of Columbia Energy Office (Washington, DC) |
| DCEO➣Directorate on Corruption and Economic Offences (Lesotho) |
| DCEO➣Defense Communications Engineering Office |
| DCEO➣Division Communications-Electronics Officer |