TSP
- Bus priority
- National Harmony Party
- TSP (econometrics software)
- Taconic State Parkway
- Taiwan Solidarity Party
- Taiwan Statebuilding Party
- Team software process
- Teaspoonful
- Tehachapi Municipal Airport
- Telecommunications Service Priority
- Telecommunications service provider
- Texas Star Party
- Texas Student Publications
- Textured soy protein
- The Stanley Parable
- Thiele/Small parameters
- Third Society Party
- Threatened Species Protection Act 1995
- Thrift Savings Plan
- Thrombospondin
- Time stamp protocol
- Titanium sublimation pump
- Toronto St. Patricks
- Trailer stability program
- Travelling salesman problem
- Trimethylsilyl-2,2,3,3-tetradeuteropropionic acid
- Trisodium phosphate
- Tropical spastic paraparesis
- Trust service provider
- Tuen Mun Swimming Pool stop
- Tunnel Setup Protocol