FBB

FBB may refer to:
 * FBB (F6FBB), a packet radio messaging system
 * FBBank, a defunct Greek bank
 * Federação de Bandeirantes do Brasil, the Girl Guide Federation of Brazil
 * Female bodybuilding
 * FinBank Burundi, a Burundian bank
 * Flughafen Berlin Brandenburg GmbH, a German airport operator
 * Folding boxboard
 * Foundation Beyond Belief, a humanist charity that promotes secular volunteering and responsible charitable giving.
 * The Fresh Beat Band, an American television series
 * Führerbegleitbrigade, a German armoured brigade of World War II
 * Full Basket Belize, an American charity