OFB

OFB may refer to:


 * Original Fila Brasileiro, a working farm dog breed from Brazil
 * Ordnance Factories Board, an Indian industrial setup engaged in the production of arms, ammunition and other equipment for military and civilian applications
 * Austrian Football Association (German: Österreichischer Fußball-Bund, ÖFB)
 * Outflow boundary, in meteorology, the leading edge of precipitation-cooled air emanating from a thunderstorm
 * Output feedback, a mode of operation for block ciphers in cryptography
 * Overseas Filipino Bank, a state-owned bank in the Philippines
 * Oklahoma Farm Bureau
 * Open for Business (blog)|Open for Business]], an online general interest publication with a technology focus
 * The Sims 2: Open for Business
 * Oregon Food Bank
 * OFB (rap group), or Original Farm Boys, a UK drill music group
 * Operation Forth Bridge, the national plan for handling the death of Prince Philip