TSR

Template:Sister project TSR may refer to:

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Science and technology

• Terminate-and-stay-resident program, a type of MS-DOS computer program
• Thermochemical sulfate reduction, reducing sulfate to sulfide
• Tip-speed ratio, of a wind turbines
• Temporary speed restriction, UK railway term
• Traffic-sign recognition, by equipment in vehicles

Military

• BAC TSR-2, a prototype British bomber
• TSR I and II, prototypes of the Fairey Swordfish torpedo bomber
• FN Tactical Sport Rifle
• Transvaal Scottish Regiment

Arts, media and culture

• TSR, Inc., game publisher
• Télévision Suisse Romande, a French-language Swiss TV channel
• Full Metal Panic! The Second Raid, an anime
• Team Sonic Racing, a video game
• True Symphonic Rockestra, an opera-oriented project
• "T.S.R. (Toilet Stool Rap)", song from Biz Markie's album I Need a Haircut
• The Shade Room, media company

Organizations

• Telford Steam Railway, UK
• Texas State Railroad, US
• Toronto Street Railway (horse-drawn), 1861-1891
• Former Toronto Suburban Railway
• Timișoara Traian Vuia International Airport, Romania, IATA code
• Trans-Siberian Railway
• TSR Records

Other uses

• Travelling stock route, Australia
• Treno Servizio Regionale, Italian trains
• Total shareholder return
• Traditional Spelling Revised, a relatively conservative English-language spelling reform