Tav

Tav or TAV may refer to:

Math, science and technology

 * Tav (number), in set theory the collection of all cardinal numbers
 * The Advanced Visualizer, a 3D graphics software package
 * Tomato aspermy virus, a plant virus
 * Tropical Atlantic Variability, in meteorology
 * Ti-6Al-4V, a titanium alloy containing aluminum and vanadium
 * Tire Assault Vehicle, a small teleoperated vehicle used to test Space Shuttle tires

Nickname

 * Tav Falco (born 1945), American musical performer, performance artist, actor, filmmaker and photographer
 * Octavio M. Salati (1914–2001), American engineer, academic and educator

Transportation

 * TAV, IATA airport code for Tau Airport, American Samoa
 * TAV, airline code for Compañía de Servicios Aéreos Tavisa
 * TAV-8B, the two-seat version of the McDonnell Douglas AV-8B Harrier II aircraft
 * TAV Airports Holding (Tepe Akfen Ventures), a Turkish airport operator
 * Treno Alta Velocità, the a special-purpose entity working name for the Italian high-speed rail network
 * TAV RJ-SP, the far future possible Brazilian Rio–São Paulo high-speed rail system

Other uses

 * tav, ISO 639-3 code for the Tatuyo language of Colombia
 * Tav (letter), the last letter of many Semitic abjads
 * The Artists Village, an experimental arts group in Singapore
 * Toon-A-Vision channel