| Abbreviation | Definition |
|---|---|
| RPA | Random Phase Approximation |
| RPA | Rangemaster Precision Arms |
| RPA | Ravenswood Physician Associates |
| RPA | Re Published As |
| RPA | Real Property Accountability |
| RPA | Real Property Associates |
| RPA | Recently Promoted A**hole |
| RPA | Recently Promoted Asshole |
| RPA | Recognition Professionalism Achievement |
| RPA | Recombinant Protective Antigen |
| RPA | Recombinase Polymerase Amplification |
| RPA | Redmond |
| RPA | Reduced Pressure Assembly |
| RPA | Refrigerant Purity Analyser |
| RPA | Regional Plan Association |
| RPA | Registered Professional Adjusters |
| RPA | Reimbursement Plan Administrators |
| RPA | Relative Positive Acceleration |
| RPA | Renal Physicians Association's |
| RPA | Replication Protein A |