| Acronym | Definition |
|---|
| RDDC➣Rochester Downtown Development Corporation (Rochester, NY) |
| RDDC➣Royal Danish Defence College |
| RDDC➣Richmond District Democratic Club (California) |
| RDDC➣Rebecca Davis Dance Company (Philadelphia, PA) |
| RDDC➣Remote Drug Delivery Capsule (pharmaceutical research) |
| RDDC➣Rapid Development and Deployment Committee |