TPB may stand for:
Organizations Town Planning Board, in Hong Kong Transit Planning Board, in Atlanta, Georgia, US Transports publics biennois, a public transport operator in Biel/Bienne, Switzerland
Other uses The Pirate Bay, online index of movies, music, video games, pornography and software Theory of planned behavior, a psychological theory Thorpe Bay railway station, Essex, England, station code TPB Trade paperback, a type of paperback book Trailer Park Boys, a Canadian mockumentary television series Triple phase boundary, a geometrical class of phase boundary 1,1,4,4-Tetraphenylbutadiene, an electroluminescent dye
See also TPB AFK, a 2013 film about The Pirate Bay trial