DOO
| Acronym | Definition |
|---|---|
| DOO | Description Of Operation |
| DOO | Director of Operations (various organizations) |
| DOO | Driver Only Operation |
| DOO | Department Organization Order |
| DOO | Developer, Owner and Operator |
| DOO | District Operations Office (US Navy) |
| DOO | District Ordnance Officer (rank; US DoD) |
| DOO | Department of Defense Originating Office (US DoD) |
| DOO | Drustvo s Ogranicenom Odgovornoscu (Croatian: Limited Liability Company) |
| DOO | Double Oven Oscillator (Symmetricom) |
| DOO | Director of Oceanography Operations |
| DOO | Days Overdue Outstanding |