| Acronym | Definition |
|---|
| DDRI➣Downtown Development of Regional Impact (Florida) |
| DDRI➣Doctoral Dissertation Research Improvement (US NSF) |
| DDRI➣Dietrich Diabetes Research Institute (Cleveland, OH) |
| DDRI➣Deaf Dane Rescue Inc. (Springfield, OR) |
| DDRI➣Diversified Data Resources, Inc. (Novato, CA) |
| DDRI➣Distinguished Dobermans Rescue, Inc. (Pennsylvania) |