| Abbreviation | Definition |
|---|---|
| RPPM | Radiation Pressure Power Meter |
| RPPM | Radiation Protection Program Manual |
| RPPM | Raw Portable Pixel Map |
| RPPM | Real Proc Per Minute |
| RPPM | Real Proccs Per Minute |
| RPPM | Real Procs Per Minute |
| RPPM | Rejected Parts Per Million |
| RPPM | Returned Parts Per Million |
| RPPM | Reverse Phase Protein Microarray |
| RPPM | Rotary planar peristaltic micropump |
| RPPN | Rastriya Prajatantra Party Nepal |
| RPPO | Regional Plant Protection Organization |
| RPPO | Regional Preferred Provider Organization |
| RPPO | Regional Preferred Provider Organizations |
| RPPO | Registered Public Purchasing Official |
| RPPO | Religion Past and Present Online |
| RPPO | Renewable Power Purchase Obligation |
| RPPO | Rhema Parousia Philharmonic Orchestra |
| RPPP | Razvoj primijenjene programske potpore |
| RPPP | Relative purchasing power parity |