FLB

FLB may refer to:

• Brandenburg Football Association (German: Fußball-Landesverband Brandenburg)
• Breton Liberation Front (French: Front de Libération de la Bretagne)
• Faint little ball, a Drosophila gene
• Faulconbridge railway station, in New South Wales, Australia
• Favourite-longshot bias
• Federal Land Bank, part of the United States Farm Credit System
• Flashlight Brown, a Canadian punk rock band
• Fly Linhas Aéreas, a defunct Brazilian airline
• Frihetliga Ljusdalsbygden, a Swedish political party
• General Aviation FLB, an American aircraft
• Lebanese Basketball Federation
• Stade Francis-Le Blé, a stadium in Brest, France