DDRI
| 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) |