XT may refer to:
Science and technology Computing and electronics XT Mobile Network, a Telecom New Zealand mobile network IBM PC/XT, a personal computer XT bus architecture Crosstalk, an electrical interference caused by a wire carrying an electrical signal the XT versions of Radeon graphics cards XT (or XT), a video server from EVS Broadcast Equipment XT XSLT, an implementation in Java of XSLT, created by James Clark X Toolkit Intrinsics or X toolkit, or Xt, a library providing an object-oriented-looking API for the X Window System Canon Digital Rebel XT, a digital single-lens reflex camera
Vehicles Ford XT Falcon, a car produced by the Ford Motor Company in Australia between 1968 and 1969 Moyes XT, an Australian hang glider design Subaru XT, a sports car Yamaha XT 600 (and other XT versions), an enduro motorcycle
Aircraft XT, United States aircraft designator for Experimental Trainer
Other uses XT Brewing Company, an English Microbrewery XT (band), a Swedish metal band Extra time, in sport Cross-training, in sport Air Exel (IATA airline code XT) Christmas tree (oil well) Bop It! XT, a 2011 electronic game