| Acronym | Definition |
|---|
| DEO➣Deodorant |
| DEO➣Diversification de l'Économie de l'Ouest Canada (Western Economic Diversification Canada) |
| DEO➣Departamento de Estudos Organizacionais (Portuguese: Department of Organizational Studies; Brazil) |
| DEO➣Dearborn, Michigan (Airport Code) |
| DEO➣District Education Office |
| DEO➣Dominion East Ohio (energy) |
| DEO➣Defence Estate Officer (India) |
| DEO➣Data Entry Operator |
| DEO➣Diesel Engine Oil |
| DEO➣Division of Enterprise Operations (Wisconsin) |
| DEO➣Direct Entry Officer |
| DEO➣Deputy Executive Officer |
| DEO➣Deduction from Earnings Order (UK) |
| DEO➣Detention Enforcement Officer (Department of Homeland Security) |
| DEO➣Deputy Ethics Official (various government agencies) |
| DEO➣Department of Extranormal Operations (DC Comics Universe) |
| DEO➣Drilling Efficiency Optimization (oil industry) |
| DEO➣Dynamic External Objects |
| DEO➣Desired Educational Outcome |
| DEO➣Department of Economic Opportunity |
| DEO➣Deputy Education Officer |
| DEO➣Digital End Office |
| DEO➣Deutsche Evangelische Oberschule in Kairo (German Evangelist high school; Cairo, Egypt) |
| DEO➣Director of Emergency Operations |
| DEO➣Delta Elite Operatives (online gaming) |
| DEO➣Defense Employment Option |
| DEO➣Desired Exhaust Oxygen |
| DEO➣Deep East Oakland |
| DEO➣District Engineer Office |
| DEO➣Diocese of El Obeid |
| DEO➣Doing Everything Official (band) |