TW

TW may refer to:
* Tare weight
* Terawatt, a unit of power
* Taylor Wimpey, the largest British based construction company
* Taylor Woodrow, British based construction company; subsidiary of Taylor Wimpey
* Technical writer, a person who writes technical documentation
* Teresa Wentzler, a cross-stitch and fantasy artist
* Tiger Woods, an American golfer
* Time Warner, a large media company
* Tokyo Wars, a video game
* "Torchwood", a science fiction television series, spun off from the "Doctor Who" series
* Trans World Airlines (IATA code: TW), a defunct airline
* TribalWar, an online gaming discussion forum
* Tropical worsted, a type of worsted fabric
* Tiberium Wars,

;places
* Republic of China (Taiwan), ISO 3166-1 alpha-2 country code
* Telford and Wrekin, a borough in Shropshire, England
* Tsuen Wan, Hong Kong
* TW postcode area, Twickenham postcode area, a group of 20 postal districts in southwest Greater London