OPDA
| 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) |