| MDRA | Malta Drag Racing Association 
| Others |
| MDRA | Manx Drag Racing Association
| Others |
| MDRA | Marine Design Resource Alliance
| Others |
| MDRA | Marketing and Development Research Associates
| Others |
| MDRA | Maryland Delaware Rocketry Assoc
| Others |
| MDRA | Maryland Delaware Rocketry Association
| Others |
| MDRA | Mason Dixon Riders Association
| Others |
| MDRA | Medical Device Risk Assessment
| Others |
| MDRA | Metropolitan Detroit Rehabilitation Association
| Others |
| MDRA | Metropolitan District Rifle Association
| Others |
| MDRA | Mid Delta Regional Airport
| Others |
| MDRA | Midwest Drag Racers Association
| Others |
| MDRA | Minnesota Deputy Registrar's Association
| Others |
| MDRA | Minnesota Distance Running Association
| Others |
| MDRA | Minor Development Review Application
| Others |
| MDRA | Montana Drag Racers Association
| Others |
| MDRA | Motorcycle Drag Racing Association
| Others |