TT

TT, Tt, tt, or .tt may refer to:

Film and television

• Teen Titans (TV series), a popular show that aired from 2003-2006
• Today Tonight, an Australian current affairs television program produced by the Seven Network

Gaming

• Manx TT Super Bike, an arcade racing game by Sega
• Transport Tycoon, a computer game by Chris Sawyer
• Traveller's Tales, a British software house
• Toontown Online, a Disney Interactive MMO
• Tourist Trophy (video game), a motorcycle racing game for the PlayStation 2

Other uses in arts and entertainment

• TT scale (Table Top scale), a niche model railroading scale
• Tritone, or augmented fourth, a musical interval that spans three whole tones
• "TT", the lead single from Twicecoaster: Lane 1 by South Korean girl group Twice

• TT Electronics, a British maker of automotive components
• TT-Line Company, a ferry company operating from Tasmania to Australia
• Order and Justice (Lithuanian: Tvarka ir teisingumas), a Lithuanian political party
• Tidningarnas Telegrambyrå, a Swedish news agency
• Toytown Germany, a web site for English-speaking foreigners in Germany
• Traveller's Tales, a British software producer

Biology and medicine

• Tetanus toxoid, a vaccine to prevent tetanus
• Therapeutic touch, an alternative medicine practice
• Thrombin time, a coagulation blood test

Computing

• .tt, the country code top-level domain for Trinidad and Tobago
• <tt>...</tt>, an HTML presentation element that writes text in monospace font
• Atari TT030, a computer based on the Motorola 68030 CPU
• Template Toolkit, a Perl template engine
• Transaction translator, a particular unit in USB hubs
• TrueType, a font format
• Truth-table reduction (or tt-reduction), a kind of transformation used in computability theory

Other uses in science and technology

• Telegraphic transfer (or telex transfer or T/T), a method of transferring money
• Terrestrial Time, an astronomical time standard
• Tiny Telephone, a type of phone connector

• Table tennis
• Time trial, in racing sports, a race against the clock to secure the fastest time
• Tourist Trophy (disambiguation), several meanings
  • Dutch TT, a motorcycling event, held on the last Saturday of June
  • Isle of Man TT, an annual motor-cycle racing event held on the Isle of Man
• TT Pro League, a professional association football league for clubs in Trinidad and Tobago
• TT Zero, an Isle of Man TT race

• "TT", an emoticon indicating tears streaming from the eyes
• Audi TT, a 2-door sports car produced by Audi
• TT bar, a ten tola gold bar traded in 3.75 oz (117 g) weights
• TT pistol, a Soviet military automatic pistol designed by Fedor Tokarev
• Tatar language (ISO 639-1 code)
• Theban Tombs, or discovered tombs of the Theban Necropolis
• Trinidad and Tobago (ISO 3166 digram), an archipelagic state in the southern Caribbean