| Acronym | Definition |
|---|
| RDDA➣Regles pour la Description des Documents d' Archives (French: Canadian Committee on Archival Description) |
| RDDA➣Red Dot Design Award |
| RDDA➣Raleigh District Dietetic Association (North Carolina) |
| RDDA➣Regional Digital Development Agency (UK) |
| RDDA➣Research Develop Disseminate Adopt (education) |
| RDDA➣Rationale Drug Design Approach |
| RDDA➣Routing Digital Distribution Amplifier |
| RDDA➣Recherche et Développement En Défense de l'Atlantique (French) |
| RDDA➣Recherche et Développement Défense de l'Air |
| RDDA➣Regional Defence Dental Association |
| RDDA➣Rochester District Dietetic Association (New York) |
| RDDA➣Receiver Decision Delayed ACK |