FSB

FSB may refer to:

Organizations

 * Federal Security Service, the principal security agency of the Russian Federation.

Banking and finance

 * Federal savings bank, a class of bank in the United States
 * Federation of Small Businesses, a British lobbying group
 * Financial Services Board (South Africa), a financial regulatory authority
 * Financial Stability Board, an international group of financial authorities
 * First Somali Bank, a bank headquartered in Mogadishu, Somalia
 * Swedbank, formerly FöreningsSparbanken, a retail banking group

Computing

 * Fast syndrome-based hash, cryptographic hash functions
 * Front-side bus, a computer communication interface

Schools

 * Farmer School of Business, at Miami University in the U.S. state of Ohio
 * Friends School of Baltimore, a Quaker institution in Baltimore
 * Fuqua School of Business, at Duke University in the U.S. state of North Carolina

Other

 * FSB (band), a Bulgarian band
 * Bolivian Socialist Falange (Spanish: Falange Socialista Boliviana), a Bolivian political party
 * Brinjal fruit and shoot borer (Leucinodes orbonalis), a moth species
 * Fellow of the Society of Biology, U.K.
 * Fire support base, a temporary military encampment
 * Forward support battalion, predecessor of brigade support battalion
 * Fishbourne railway station, in England
 * Fortune Small Business, a defunct magazine
 * Trade Union Social Citizens List (Danish: Faglig Social Borgerliste), a Danish political group