| Acronym | Definition |
|---|
| RAA | Residential Accredited Appraiser (National Association of Realtors) |
| RAA | Reinsurance Association of America |
| RAA | Regional Airline Association |
| RAA | Royal Australian Artillery |
| RAA | Right Atrial Appendage |
| RAA | Royal Automobile Association (South Australia) |
| RAA | Renin Angiotensin Aldosterone |
| RAA | Reductio Ad Absurdum (indirect mathematical proof by contradiction) |
| RAA | Reflexology Association of America |
| RAA | Recreation and Amusement Association (Japan; WWII) |
| RAA | Recycle America Alliance |
| RAA | Richmond Ambulance Authority |
| RAA | Royal Artillery Association |
| RAA | Reeve Aleutian Airways |
| RAA | Real Access Alliance (National Association of Industrial and Office Properties) |
| RAA | Romanian Angel Appeal Foundation (Bucharest, Romania children's aid organization) |
| RAA | Responsibility, Accountability, and Authority |
| RAA | Redeployment Assembly Area |
| RAA | Resource Allocation Answer (response to Resource Allocation Request) |
| RAA | Retained Asset Account (insurance) |
| RAA | Rear Assembly Area |
| RAA | Restricted Access Area |
| RAA | Random Access Algorithm |
| RAA | root addressable area |
| RAA | Release Application Aborts |
| RAA | Right Atrial Abnormality |
| RAA | Required Asset Availability |
| RAA | Reconnaissance Avenue of Approach |
| RAA | Regional Application Administrator |
| RAA | Remote Advisory Airport |
| RAA | Region Administrative Assistant |
| RAA | Request for Alternative Approval |
| RAA | Reservation Aloha Algorithm |
| RAA | Receiving Antenna Array |
| RAA | Remote Access Agent (Digital Lightwave) |
| RAA | Reconfigurable-Aperture Antenna |
| RAA | Riyadh Alumni Association |
| RAA | Rigid-Atom Approximation |
| RAA | Research Associate in Anthropology |
| RAA | Request for Airborne Assets |
| RAA | Railways Athletic Association |