TSP or tsp may refer to:

Medicine

  • Tropical spastic paraparesis, weakness due to T-lymphotropic virus infection

Science and technology

  • Team software process, for producing software
  • Telecommunications service provider
  • .tsp, for telephony service provider, file extension for a Microsoft API
  • Thiele/Small parameters, of a loudspeaker driver
  • Thrombospondin, protein
  • Time stamp protocol in cryptography
  • Titanium sublimation pump, a type of vacuum pump
  • Trailer stability program on Opel vehicles
  • Transit signal priority, for buses
  • Travelling salesman problem, optimization problem
  • Trimethylsilyl-2,2,3,3-tetradeuteropropionic acid, derivative of tetramethylsilane
  • Trisodium phosphate, cleaning agent
  • TSP (econometrics software), programming language
  • Tunnel Setup Protocol, in networking
  • Time Synchronization Protocol, see timed
  • Type Set Page, in E-publishing

Food and cooking

  • Teaspoonful, abbreviation
  • Textured soy protein

Governmental

  • Taconic State Parkway, New York State, USA
  • Telecommunications Service Priority in an emergency, USA
  • Texas Student Publications, USA
  • Texas Special Police
  • Texas State Police
  • Threatened Species Protection Act 1995, Tasmania, Australia
  • Thrift Savings Plan, USA
  • Trust service provider

Internationally

  • Tajikistan Support Project, supporting healthcare
  • Texas Star Party for astronomers
  • TSP, IATA airport code for Tehachapi Municipal Airport, California, USA
  • TSP, MTR station code for Tuen Mun Swimming Pool stop, Hong Kong

Political parties

  • National Harmony Party, former party in Latvia
  • Taiwan Solidarity Party
  • Taiwan Statebuilding Party
  • Third Society Party, Taiwan

Other

  • The Stanley Parable, a 2013 video game developed by Galactic Cafe
  • Toronto St. Patricks, an early name for the Toronto Maple Leafs of the National Hockey League