| FBR | False Best Rate 
| Others |
| FBR | Family Behavioral Resources
| Others |
| FBR | Family Business Review
| Others |
| FBR | Farm Business Registration (Ontario)
| Others |
| FBR | Fast Bone Regeneration
| Others |
| FBR | Fast Breeder Reactors
| Others |
| FBR | Federal Board of Revenue
| Others |
| FBR | Federal Bureau of Revenue
| Others |
| FBR | Federated Banking of Rochester
| Others |
| FBR | Fedral Board of Revenue
| Others |
| FBR | Final Battle Royale
| Others |
| FBR | Fine Business Radio
| Others |
| FBR | Finite Basis Representation
| Others |
| FBR | Flashback Express Recorder
| Others |
| FBr | Fluctuating Brightness
| Others |
| FBR | Fluidized Bed Reactor
| Others |
| FBR | Foam Backer Rod
| Others |
| FBR | Foot Brake
| Others |
| FBR | Foreign Body Removal
| Others |
| FBR | Fortnite Battle Royale
| Others |
| FBR | Forward Brake Reverse
| Others |
| FBR | Fouled-up Beyond Repair
| Others |
| FBR | Foundation for
| Others |
| FBR | Foundation for Biomedical Research
| Others |
| FBR | Foundation for Blood Research
| Others |
| FBR | Franchise Business Review
| Others |
| FBR | Free Born Riderz
| Others |
| FBR | Free Burma Rangers
| Others |
| FBR | Frequency Based Replacement
| Others |
| FBR | Friedman Billings and Ramsey
| Others |
| FBR | Friedman Billings Ramsey
| Others |
| FBR | Friendly Beaches Railway
| Others |
| FBR | From Beneath the Rug
| Others |
| FBR | Fueled By Ramen
| Others |