PTB

PTB may refer to:

Organizations

• Workers' Party of Belgium, a Belgian far-left political party
• Brazilian Labour Party (disambiguation), two political parties in Brazil
• Party of Labour of Burkina (Parti du Travail de Burkina), a political party in Burkina Faso
• Passaredo Transportes Aéreos (ICAO code), a Brazilian airline
• Physikalisch-Technische Bundesanstalt, the national standards laboratory of Germany
• Placer Theatre Ballet, the ballet company for Placer County, California, US
• Portland Trail Blazers, a professional basketball team

Science and technology

• Patellar tendon bearing, a type of below-knee prosthetic socket that uses the patellar ligament as the primary weight-bearing surface
• Permian-Triassic boundary, the mass extinction event between the periods in geology
• N-Phenacylthiazolium bromide
• Phosphotyrosine-binding domain (PTB-domain), a protein domain
• Polypyrimidine-tract binding protein
• Pulmonary tuberculosis, manifestation of tuberculosis in the lungs
• Pounds of salt per thousand barrels of crude oil; see Desalter
• Push to break, electronics push switch

Computing

• Packet Too Big, an ICMPv6 message; see IPv6 packet
• .PTB, a file extension used by musical tablature authoring tool Power Tab Editor
• Public Test Build, of the game Dead by Daylight
• Project team builder, a project management simulator

Other uses

• Proto-Tibeto-Burman language
• P.T.B. (Placentia Town Ballers), an album of the rapcore group Kingspade

See also

• The powers that be (disambiguation)