TWR

TWR may mean:
 * Tom Walkinshaw Racing, a racing team and engineering company founded in 1976
 * Trans World Radio, a multinational Christian evangelistic broadcaster
 * Traveling wave reactor, a type of nuclear reactor that would convert fertile material into fissile fuel
 * Tokyo Waterfront Area Rapid Transit, Japan
 * Thrust-to-Weight Ratio of an aircraft or spaceship engine.
 * Time-weighted return is a method of calculating investment return.
 * Tuas West Road MRT station, Mass Rapid Transit station in Singapore, MRT station abbreviation
 * Tyne and Wear, county in England, Chapman code