LBB

LBB may stand for:


 * Lactobacillus delbrueckii subsp. bulgaricus, a bacterium used in the production of yogurt
 * Ladyzhenskaya–Babuška–Brezzi condition, in mathematics
 * Laura Bell Bundy (born 1981), an actress and singer
 * Little brown bird or little brown bats, name given to an unidentified species
 * Little Black Book (disambiguation)
 * Lubbock Preston Smith International Airport, by IATA code