PTB may refer to:

Government and politics

  • Bermuda Public Transportation Board
  • Bessarabian Peasants' Party (), a political party in the Kingdom of Romania
  • Brazilian Labour Party (1945) (), dismantled after the 1964 military-led coup d'état
  • Brazilian Labour Party (1981) (), merged with Patriota to form the new Democratic Renewal Party in 2022.
  • Pakistan Tobacco Board
  • Party of Labour of Burkina (), a political party in Burkina Faso
  • Physikalisch-Technische Bundesanstalt, the national metrology institute of Germany
  • Workers' Party of Belgium (), a Belgian political party

Science and medicine

  • N-Phenacylthiazolium bromide, a cross-link breaker
  • Permian-Triassic boundary, a mass extinction event
  • Phosphotyrosine-binding domain (PTB-domain), a protein domain
  • Polypyrimidine tract-binding protein, an RNA-binding protein
  • Pulmonary tuberculosis, manifestation of tuberculosis in the lungs

Technology

  • Project team builder, a project management simulator
  • Public Test Build, in software testing
  • Push to break, electronics push switch
  • Packet Too Big, an ICMPv6 message; see IPv6 packet
  • Pounds of salt per thousand barrels of crude oil; see Desalter
  • .ptb, a file extension used by musical tablature authoring tool Power Tab Editor

Transport

  • Pentre-bach railway station, in Wales
  • Petit train de banlieue, a passenger train in Senegal
  • Petersburg station, an Amtrak station serving Petersburg, Virginia
  • Voepass Linhas Aéreas, a Brazilian airline

Other uses

  • P.T.B (album), by rapcore group Kingspade
  • Placer Theatre Ballet, an American ballet company
  • Portland Trail Blazers, an American professional basketball team
  • Proto-Tibeto-Burman language
  • Proto-Torres-Banks language, a reconstructed language from Vanuatu

See also

  • PTP (disambiguation)
  • The powers that be (disambiguation)