RFB

RFB or RfB may refer to:


 * Radio Free Brooklyn, a community freeform Internet radio station in Brooklyn, NY
 * Redox Flow battery, a kind of battery that uses a liquid electrolyte that flows through tanks, unlike Dry Cells with solid electrolytes, such as typical Alkaline batteries or Lithium-ion batteries.
 * Reichenbachfall Funicular, in the Swiss canton of Berne
 * Regional fishery body
 * RFB protocol, a simple "remote framebuffer" protocol for remote access to graphical user interfaces
 * Rhein-Flugzeugbau, a German aircraft company
 * "Room, Food, and Beverage", see Comps (casino)
 * Roter Frontkämpferbund ("Red Front Fighters' League"), a paramilitary organization of the Communist Party of Germany during the Weimar Republic
 * Kel-Tec RFB, a gas-operated semi-automatic rifle
 * República Federativa do Brasil
 * Request For Bid, a business process to request pricing on a specific product from vendors. See Call For Bids