| Acronym | Definition |
|---|
| OMDA | Operating Margin Before Depreciation and Amortization (bookkeeping) |
| OMDA | O Melhor Dos Animes |
| OMDA | Operation Management and Development Agreement (India) |
| OMDA | Ontario Mirror Dinghy Association (Canada) |
| OMDA | Operations Maintenance and Development Agreement |
| OMDA | Organización Mundial de Aduanas |
| OMDA | Oregon Medical Directors Association |
| OMDA | Ohio Medical Directors Association |
| OMDA | Original Music Dream Association (Hong Kong) |
| OMDA | Ohio Modified Drivers Association |
| OMDA | O-methylated-deaminated metabolites |
| OMDA | Office Municipal Des Animations (France) |
| OMDA | Oklahoma Medical Directors Association |
| OMDA | outer microtubule doublets of the axoneme |
| OMDA | Otoe-Missouria Development Authority (Oklahoma City, Oklahoma) |
| OMDA | Offense-Maneuver, Defense-Attrition (military science) |
| OMDA | 1,8-octamethylenediamine |
| OMDA | Office of Medical and Dental Affairs (US Navy) |
| OMDA | Online Marketing and Development Associates |
| OMDA | Oklahoma Motorcycle Dealers Association |