Tiw

Tiw, TiW or TIW may refer to:


 * Tiw (god), an Incan god
 * Týr, a god in Germanic paganism, spelled Tiw in Old English
 * Telesystems International Wireless, a Canadian global mobile communications operator
 * Tropical instability waves, a westward-propagating wave
 * Tiw Valley, named after the Norse god Týr
 * Tactical Imagery-Intelligence Wing, responsible for the processing of fast-jet electro-optic imagery
 * Tin Wan station, by MTR station code
 * Tacoma Narrows Airport, by IATA code
 * Titanium Tungsten (TiW), a titanium alloy used in the semiconductor industry