| Acronym | Definition |
|---|
| FRB | Federal Reserve Board (Board of Governors of the US Federal Reserve System) |
| FRB | Federal Reserve Bank |
| FRB | Fractional Reserve Banking |
| FRB | Fatality Review Board (various locations) |
| FRB | Fast Radio Burst |
| FRB | Fixed Rate Bond (finance) |
| FRB | Forth Road Bridge (UK) |
| FRB | Fondation Roi Baudouin (Dutch: King Baudouin Foundation; est. 1976; Belgium) |
| FRB | Floating Point Rename Buffer |
| FRB | Fault Resilient Booting |
| FRB | Fondation pour la Recherche sur la Biodiversité (Fench: Foundation for Biodiversity Research) |
| FRB | Failure Review Board |
| FRB | Free Radio Berkeley |
| FRB | Fast Rescue Boat |
| FRB | Floating Rate Bond |
| FRB | Flat Rate Box (USPS) |
| FRB | Family-Related Bonus |
| FRB | Food Resource Bank |
| FRB | Fault Resilient Boot |
| FRB | Functional Requirements Board |
| FRB | Faulty Row Block |
| FRB | Functional Requirements Baseline |
| FRB | Forward Routing Bit |
| FRB | Feng-Rao Bound |
| FRB | Ferric iron Reducing Bacteria |
| FRB | Force Requirements Branch (US Army) |
| FRB | Fiberglass Rotor Blade |