| RRA | Race Relations Act 
| Others |
| RRA | Racing Rivals Account
| Others |
| RRA | Radio Research Agency
| Others |
| RRA | Radiology Research Alliance
| Others |
| RRA | Radioreceptor assay
| Others |
| RRA | Rahanweyn Resistance Army
| Others |
| RRA | Rahanweyne Resistance Army
| Others |
| RRA | Railroad Retirement Act
| Others |
| RRA | Raleigh Record Ace
| Others |
| RRA | Rapid Rural Appraisal
| Others |
| RRA | Rappahannock Recreation Association
| Others |
| RRA | Real Rock Album
| Others |
| RRA | Realisateurs de Reves Automobiles
| Others |
| RRA | Reclamation Reform Act
| Others |
| RRA | Reconstructionist Rabbinical Association
| Others |
| RRA | Red River Aspect
| Others |
| RRA | Red River Authority
| Others |
| RRA | Redactie Raadt Aan
| Others |
| RRA | Regional Reporters Association
| Others |
| RRA | Registered Radiologist Assistant
| Others |
| RRA | Registered Record Administrator
| Others |
| RRA | Registered Records Administrator
| Others |
| RRA | Registry Registrar Agreement
| Others |
| RRA | Regulatory Research Associates
| Others |
| RRA | Reiulf Ramstad Architects
| Others |
| RRA | Relative Risk Aversion
| Others |
| RRA | Religious Research Association
| Others |
| RRA | Remote Record Access
| Others |
| RRA | Renewable Readiness Assessment
| Others |
| RRA | Renewables Readiness Assessment
| Others |
| RRA | Representable Relation Algebras
| Others |
| RRA | Reservation Random Access
| Others |
| RRA | Residual Reduction Algorithm
| Others |
| RRA | Restructuring and Reform Act
| Others |
| RRA | Retiree Reimbursement Account
| Others |
| RRA | Retirement Reimbursement Arrangement
| Others |
| RRA | Revenue Reconciliation Act of 1990
| Others |
| RRA | Richard Rude Architectural
| Others |
| RRA | Ridgecrest Redevelopment Agency
| Others |
| RRA | Risk Readiness Assessment
| Others |
| RRA | Road Roller Association
| Others |
| RRA | Roadside Responders Association
| Others |
| RRA | Roadside Rest Area
| Others |
| RRA | Rock River Arms
| Others |
| RRA | Rock River Arsenal
| Others |
| RRA | Rockland Repeater Association
| Others |
| RRA | Rodrigues Regional Assembly
| Others |
| RRA | Roof Rack Anodized
| Others |
| RRA | Rotate Right Accumulator
| Others |
| RRA | Round Robin Archive
| Others |
| RRA | Route Risk Assessment
| Others |
| RRA | Russell Reynolds Associates
| Others |