RPIA
| Acronym | Definition |
|---|---|
| RPIA | Radial Partition Immunoassay |
| RPIA | Regional Program of Innovative Actions (EU) |
| RPIA | Rocket Propellant Information Agency |
| RPIA | Reform Party of Iowa |
| RPIA | Rensselaer Polytechnic Institute Ambulance (Troy, NY) |
| RPIA | Restorative Proctocolectomy with Ileoanal Anastomosis (colorectal medicine) |