| Acronym | Definition |
|---|
| OPDA➣Ottoman Public Debt Administration (est. 1881) |
| OPDA➣Independent Progressive Democratic Alternative (Suriname) |
| OPDA➣Olivier Poivre D'Arvor (French author) |
| OPDA➣Odessa Public Development Authority (Odessa, WA) |
| OPDA➣Oxydiphthalic Anhydride |
| OPDA➣Optimal Protection Domain Allocation |
| OPDA➣Orleans Parish District Attorney (Louisiana) |