PPDI
| Acronym | Definition |
|---|---|
| PPDI | Pharmaceutical Product Development Inc. (Wilmington, NC) |
| PPDI | Partai Penegak Demokrasi Indonesia (Indonesian: Indonesian Democracy Party; Indonesia) |
| PPDI | Past and Present Directions (Plymouth State University course; Plymouth, NH) |
| PPDI | Pastoralist Peace and Development Initiative |
| PPDI | Persatuan Pembebasan Dari Indonesia |