| DDO | Data Dictionary Object 
| Others |
| DDO | Data Driven Organization
| Others |
| DDO | Data Driven Outcome
| Others |
| DDO | Data Driven Outcomes
| Others |
| DDO | Datacenter Design Optimization
| Others |
| DDO | David Dunlap Observatory
| Others |
| DDO | Deliberately Developing Organisation
| Others |
| DDO | Deliberately Developmental Organization
| Others |
| DDO | Deputy Director for Operations
| Others |
| DDO | Deputy Director of Operations
| Others |
| DDO | Deputy District Officer
| Others |
| DDO | Design And Development Overlay
| Others |
| DDO | Designated Detention Officer
| Others |
| DDO | Detention and Deportation Officer
| Others |
| DDO | Device Driver Overlay
| Others |
| DDO | Digital Dental Office
| Others |
| DDO | Diocesan Director of Ordinands
| Others |
| DDO | Diploma in Dental Orthopaedics
| Others |
| DDO | Directive Definition Object
| Others |
| DDO | Discrete Digital Output
| Others |
| DDO | Disk Drive Overlay
| Others |
| DDO | Distillate Diesel Oil
| Others |
| DDO | Distributive Denial Of
| Others |
| DDO | District Development Officer
| Others |
| DDO | District Disbursing Officer
| Others |
| DDO | Diversability Development Organization
| Others |
| DDO | Dollard des Ormeaux
| Others |
| DDO | Domaine Drouhin Oregon
| Others |
| DDO | Dominion Drop Out
| Others |
| DDO | Double Die Obverse
| Others |
| DDO | Double Dirty Obverse
| Others |
| DDO | Doubled Die Obverse
| Others |
| DDO | Down and Dirty Offroad
| Others |
| DDO | Drawing & Disbursing Officer
| Others |
| DDO | Drawing and Disbursing Officer
| Others |
| DDO | Drawing Disbursement Officer
| Others |
| DDO | Drawing Disbursing Office
| Others |
| DDO | Drawings and Disbursement Office
| Others |
| DDO | Drink Driving Offences
| Others |
| DDO | Drug Discovery Opinion
| Others |
| DDO | Drug Discovery Outsourcing
| Others |
| DDO | Dubberly Design Office
| Others |
| DDO | Dungeons and Dragons Online
| Others |
| DDO | Dungeons Dragons Online
| Others |
| DDO | Dynamic Data Object
| Others |
| DDO | Dynamic Decision Ordering
| Others |
| DDO | Dynamic Drive Overlay
| Others |