TSR

The Three-letter abbreviation TSR has a variety of meanings, depending on context:

Science and technology

• Terminate and Stay Resident, utility programs used in MS-DOS
• Thermo Sulfate Reduction, relevant to the Kraft process
• Tip speed ratio, a measurement used for wind turbines
• Temporary Speed Limit, or TSR, on British railways, or Slow zone on American railways
• Tetrahedral-shaped recess, a configuration for nanostrustures

Medicine

• Total shoulder replacement, a surgical procedure

Military

• BAC TSR-2, a prototype British bomber (TSR = Tactical Strike/Reconnaissance)
• TSR I and II, prototypes of the Fairey Swordfish torpedo bomber
• TSR - Torpedo-Spotter-Reconnaissance, a Royal Navy Fleet Air Arm designation for a series of Second World War aircraft including the Fairey Swordfish, the Fairey Albacore and the Fairey Barracuda.
• The Toronto Scottish Regiment (Queen Elizabeth The Queen Mother's Own), a Canadian militia unit

Arts, media and culture

• Télévision Suisse Romande, a French language Swiss TV channel
• Full Metal Panic!: The Second Raid, an anime
• That's So Raven, an American TV show
• The Shadow Rising, the fourth book in American author Robert Jordan's fantasy series The Wheel of Time
• The Simpsons Ride
• The Sims Resource, a fan site for The Sims
• The Sports Reporters, an American sports talk show
• The Stone Roses, a rock band from Manchester
• True Symphonic Rockestra
• The Strategic Review, a magazine published by TSR, Inc in the 1970s
• The Student Room, a United Kingdom-based internet forum
• Toy Story Racer, a video game
• True Stance Records, a record label

Business and finance

• Technical support Representative
• Total shareholder return, a.k.a. total return, a concept used to compare the performance of different companies' shares

Organizations

• Tamaracouta Scout Reserve, a Scout camp in Quebec
• The Telford Steam Railway, a heritage line in the UK
• Timişoara "Traian Vuia" International Airport
• Trans-Siberian Railway
• TSR Records, a record label
• TSR, Inc. (originally Tactical Studies Rules), the original publisher of the Dungeons & Dragons role-playing game