TSR

TSR may refer to:

Science and technology

 * Terminate and stay resident program, a type of MS-DOS computer program
 * Thermochemical sulfate reduction, a step in the sulfur cycle that reduces sulfate to sulfide
 * Tip-speed ratio, a measurement used for wind turbines
 * Temporary speed restriction, UK railway term
 * Traffic-sign recognition, by equipment in vehicles

Military

 * BAC TSR-2, a prototype British bomber (TSR = Tactical Strike/Reconnaissance)
 * TSR I and II, prototypes of the Fairey Swordfish torpedo bomber
 * FN Tactical Sport Rifle, manufactured by FN Herstal

Arts, media and culture

 * TSR (company) (originally Tactical Studies Rules), game publisher
 * Télévision Suisse Romande, a French language Swiss TV channel
 * Full Metal Panic! The Second Raid, an anime
 * The Shadow Rising, novel by Robert Jordan
 * The Sims Resource, a fan site for The Sims
 * True Symphonic Rockestra, an opera-oriented project
 * The Student Room, UK internet forum
 * Team Sonic Racing, a 2019 kart racing video game
 * The Slow Rush, an album by Tame Impala released in 2020

Organizations

 * Telford Steam Railway, a heritage line in the UK
 * Toronto Street Railway, a horsecar system operating in Toronto from 1861 to 1891
 * Toronto Suburban Railway, a former streetcar system in west Toronto and a former radial (interurban) line to Guelph
 * Timișoara Traian Vuia International Airport, near Timişoara, Romania, IATA code
 * Trans-Siberian Railway, a network of railways connecting Moscow with the Russian Far East
 * TSR Records, a record label

Other uses

 * TSR, abbreviation for travelling stock route, referring to stock routes in Australia
 * Treno Servizio Regionale, a series of Italian electrical multiple unit trains
 * Total shareholder return, a measure of the performance of different companies' stocks and shares over time
 * Team Sonic Racing, an upcoming kart racing video game by Sega and a spinoff to the Sonic the Hedgehog series