| Acronym | Definition |
|---|
| ODG | Ordine dei Giornalisti (Italian: Order Of Journalists) |
| ODG | Ordine del Giorno (Italian: Order of the Day) |
| ODG | Olive Drab Green (product description) |
| ODG | Organisme de Défense et de Gestion (French: Defense Organization and Management) |
| ODG | Official Disability Guidelines |
| ODG | Optimal Decision Group (now ChoicePoint) |
| ODG | Optics Design Group (Optical Society of Japan) |
| ODG | Oxford Diocesan Guild |
| ODG | Oligodendroglioma |
| ODG | Oh Dear God |
| ODG | Open Development Group |
| ODG | Ovarian Dysgenesis |
| ODG | Objective Differential Grade |
| ODG | Outstanding Division Governor |
| ODG | Osterhout Design Group (San Francisco, CA) |
| ODG | Old Dog Gamers |
| ODG | Obra de Gentry (Spanish: Work of Gentry) |
| ODG | Old Dirty's Gang (Counter-Strike Source gaming clan) |
| ODG | Ordnance Disposal Group |