| FRR | Facilities Repair and Renewal 
| Others |
| FRR | Facility Risk Rating
| Others |
| FRR | Falls Road Railroad
| Others |
| FRR | Falls Road Railroad Company Incorporated
| Others |
| FRR | False Reject Rate
| Others |
| FRR | False Rejection Rate
| Others |
| FRR | Fast Re route
| Others |
| FRR | Fast Re-Route
| Others |
| FRR | Fast Reroute
| Others |
| FRR | Fast Retransmit and Recovery
| Others |
| FRR | Federatia Romana de Rugby
| Others |
| FRR | Federatiei Romane
| Others |
| FRR | Felixstowe Road Runners
| Others |
| FRR | Fiber Reinforced Rubber
| Others |
| FRR | Financial Regulations and Rules
| Others |
| FRR | Financial Reporting Release (SEC - U.S. Securities and Exchange Commission)
| Others |
| FRR | Financial Reporting Releases
| Others |
| FRR | Financial Reporting Requirements
| Others |
| FRR | Financial Resource Requirements
| Others |
| FRR | Financial Risk Rating
| Others |
| FRR | Fire Resistance Rating
| Others |
| FRR | Fire Resisting Rate
| Others |
| FRR | First Responder Respirator
| Others |
| FRR | Fixed Resource Requirement
| Others |
| FRR | Flight Readiness Review
| Others |
| FRR | Flint River Ranch
| Others |
| FRR | Floating Reference Rate
| Others |
| FRR | Fluorescence Recovery Reagent
| Others |
| FRR | Foreningen af Registerede Revisorer/Institute of Registered Accountants (Denmark)
| Others |
| FRR | Foreningen Registrerede Revisorer
| Others |
| FRR | Foundation for Responsible Robotics
| Others |
| FRR | Foundation for Retinal Research
| Others |
| FRR | Frame Reception Rate
| Others |
| FRR | Free Range Routing
| Others |
| FRR | Free Rasalhague Republic
| Others |
| FRR | Free Registration Required
| Others |
| FRR | Frequency Restoration Reserve
| Others |
| FRR | Frequency Restoration Reserves
| Others |
| FRR | Front Right Rotate
| Others |
| FRR | Front Royal, Virginia USA
| Others |
| FRR | Frontier Renewable Resources
| Others |
| FRR | Functional Recovery Routine
| Others |
| FRR | Functional Requirements Review
| Others |
| FRR | Functional Response Ratio
| Others |
| FRR | Furniture Row Racing
| Others |