| Acronym | Definition |
|---|
| IDDP➣Iceland Deep Drilling Project |
| IDDP➣International Day of Disabled Persons |
| IDDP➣Iglesia de Dios Pentecostal (Spanish: Pentecostal Church of God; various locations) |
| IDDP➣Identify, Differentiate, Determine, Predict (critical thinking model) |
| IDDP➣Insulin-Dependent Diabetic Pregnancy (obstetrics and endocrinology) |
| IDDP➣International Dual Degree Program (various universities) |
| IDDP➣International Design and Decorating Professional |
| IDDP➣Interface Design Definition Paper |