JT

JT may stand for:

* "JT" (album), by James Taylor
* JT (visualization format), a 3D data format
* J. T. the Brick, the stage name of radio host John Tournour
* JT the Bigga Figga, a hip-hop artist and producer
* Haplogroup JT (mtDNA), a human mitochondrial DNA haplogroup
* Jakobstads Tidning, a Finland-Swedish newspaper
* Japan Tobacco, a cigarette manufacturer
* Jersey Telecom, the Jersey telephone company
* John Terry, English footballer who is Chelsea and England captain.
* Junior Technician, an airman rank
* Jennifer Tilly, an actress
* Justin Timberlake, singer
* John Tavares, ice hockey player.
* Johnathan Thurston, rugby league footballer.
* Jamie T, a British indie-rock singer
* J.T. Yorke, Degrassi: The Next Generation character
* The IATA airline designator for Lion Air
* Jerry Trainor, an actor best known for his roles in iCarly and Drake and Joshjames tammen akid in 5th grade