| Acronym | Definition |
|---|
| OPPC➣Ohio Pork Producers Council |
| OPPC➣Overlake Park Presbyterian Church (Bellevue, WA) |
| OPPC➣Oak Park Photography Club (Illinois) |
| OPPC➣Oregon Public Power Coalition (Portland, OR) |
| OPPC➣Orange Park Presbyterian Church |
| OPPC➣Orland Park Prayer Center |