| Acronym | Definition |
|---|
| RPA | Rural Payments Agency (UK Department of Environment, Food and Rural Affairs) |
| RPA | Replication Protein A |
| RPA | RNAse Protection Assay |
| RPA | Regional Plan Association |
| RPA | Royal Prince Alfred (hospital, Australia) |
| RPA | Random-Phase Approximation |
| RPA | Real Property Administrator (property management certificate; Canada) |
| RPA | Ribonuclease Protection Assay |
| RPA | Railway Procurement Agency (Ireland) |
| RPA | Rwandan Patriotic Army |
| RPA | Renal Physicians Association |
| RPA | Ratepayer Advocate (NJ, USA) |
| RPA | Retirement Plans Associate |
| RPA | Recombinant Protective Antigen |
| RPA | Radiant Panel Association |
| RPA | Request for Personnel Action (US Civil Service) |
| RPA | Reasonable and Prudent Alternative |
| RPA | Régimes de Pension Agréés (French: Registered Pension Plans; Canada) |
| RPA | Right Pulmonary Artery |
| RPA | Relying Party Agreement |
| RPA | Resource Protection Area |
| RPA | Retarding Potential Analyzer |
| RPA | Real Property Assessment |
| RPA | Robinson-Patman Act |
| RPA | RMIT(Royal Melbourne Institute of Technology) Postgraduate Association |
| RPA | Radio Publique Africaine (French) |
| RPA | Radiation Protection Adviser |
| RPA | Recursive Partitioning Analysis |
| RPA | Register of Professional Archaeologists |
| RPA | Rockefeller Philanthropy Advisors |
| RPA | Rubin Postaer and Associates |
| RPA | Representation of the People Act (UK) |
| RPA | Redundant Parallel Architecture (General Electric) |
| RPA | Redundant Parallel Architecture (General Electric Company) |
| RPA | Remote Patron Authentication |
| RPA | Residential Purchase Agreement |
| RPA | Radical Philosophy Association |
| RPA | Rationalist Press Association |
| RPA | Renewable Power Association |
| RPA | Radiology Practitioner Assistant (American Registry of Radiologic Technologists) |
| RPA | Regional Park |
| RPA | Roleplaying Assistant (gaming) |
| RPA | Rubber Pavements Association |
| RPA | Remotely Piloted Aircraft |
| RPA | Request for Public Assistance |
| RPA | Risk and Policy Analysts |
| RPA | Registered Professional Adjuster |
| RPA | Retirement Protection Act of 1994 |
| RPA | Recycled Paperboard Alliance |
| RPA | Rice Producers Association |
| RPA | Royal Parks Agency (UK) |
| RPA | Registration Through Practice Assessment (Canada) |
| RPA | Registered Public Accountant |
| RPA | Remote PassPhrase Authentication |
| RPA | Remote Personnel Assessment |
| RPA | Registered Physician Assistant |
| RPA | Responsible Policies for Animals, Inc. (Glenside, PA) |
| RPA | Root Protection Area (UK construction standard near trees) |
| RPA | Republika Poludniowej Afryki (Polish: Republic of South Africa) |
| RPA | Reserve Personnel, Army |
| RPA | Retail Packaging Association |
| RPA | Reserve Personnel Appropriation |
| RPA | Rapid Plant Assessment |
| RPA | Religionspädagogische Arbeitsstelle |
| RPA | Rochester Philatelic Association |
| RPA | Records Preservation and Access |
| RPA | Rubber Process Analyser |
| RPA | Remote Page Accelerator |
| RPA | Representation of People's Act (India) |
| RPA | Retired Police Association |
| RPA | Research Priority Area |
| RPA | Richmond Progressive Alliance |
| RPA | Retired Pay Accrual |
| RPA | Raggio Pocket Applications |
| RPA | Reduced Pressure Assembly (backflow prevention device used in water systems) |
| RPA | Request for Purchasing Authority |
| RPA | Rivers Protection Act (Massachusetts) |
| RPA | Revenue Producing Activity |
| RPA | Reserve Program Administrator |
| RPA | Registered Professional Archeologist |
| RPA | Revista de Politica Agricola (Portugese: Magazine of Agricultural Politics) |
| RPA | Regular Production Accessories |
| RPA | Respirator Program Administrator |
| RPA | Rally Press Association |
| RPA | Regional Public Affairs |
| RPA | Remove Personal Attacks |
| RPA | Resource Planning & Assessment |
| RPA | Regional Planning Agent |
| RPA | Remote Phrase Authentication |
| RPA | Résidence Paris Asnières |
| RPA | Revocation of Power of Attorney (legal term) |
| RPA | Registered Patent Agent |
| RPA | Redundancy Payments Act |
| RPA | Rensselaer Pride Alliance |
| RPA | Revenue and Profit Analysis |
| RPA | Rotorua Principals Association |
| RPA | Rotocraft Pilot's Associate |
| RPA | Regulatory Proposal Assessment |
| RPA | Rebirthing Psychotherapy Association |
| RPA | Returns Processing Administration |
| RPA | Research Partnership Agreement |
| RPA | Russell-Mellon Performance Attribution |
| RPA | River Path Associates (Wimborne, Dorset, UK) |
| RPA | Receiver Performance Analysis (KILTING) |
| RPA | Rensselaer Pagan Association |
| RPA | Relative Power Absorbed |
| RPA | Ring Partition Algorithm |
| RPA | Red Pine Ambassadors (Douglass College) |
| RPA | Request for Project Authorization |
| RPA | Request for Payroll Action |
| RPA | Rubbish Picture Attachment (Rareware web site) |
| RPA | Ravenswood Physicians Associates (Chicago, IL) |
| RPA | Radiation Protection Act of 1965 |
| RPA | Rundlaufprufanlage (German) |
| RPA | Russian Planetarium Association |
| RPA | Radar Propagation Analysis |
| RPA | Rice Polish Agar |
| RPA | Rotary Piezo Actuator |
| RPA | Regional Preferential Agreement |
| RPA | Requisitioning, Purchasing and Accounts Payable |
| RPA | Recommended Pricing Adjustment |
| RPA | Request Present Altitude |
| RPA | Reach Pollution Assessment |
| RPA | Retail Profit Analysis |
| RPA | Reconciling Pentecostal Assembly |
| RPA | Rectangular Patch Antenna |
| RPA | Resident Programmer Analyst |
| RPA | Reserve Pay Account |
| RPA | Richland Performing Arts Association |