JTB
# JTB

JTB may refer to:

* Jets to Brazil, an American rock band
* John the Baptist (died circa 30), Jewish preacher and ascetic
* JTB (gene), a human gene
* Journal of Theoretical Biology, a scientific journal
* JTB Corporation, formerly Japan Travel Bureau, the largest travel agency in Japan
* Justified true belief, a philosophical definition of knowledge
* JTB (software), a preprocessor that produces JavaCC files
* Joint IED Defeat (JIEDD) Test Board, an organization within the Joint Improvised Explosive Device Defeat Organization
* J. Turner Butler Boulevard, a major expressway in Jacksonville, Florida carrying the designation Florida State Road 202
