JT

• Jakobstads Tidning, a Finland-Swedish newspaper
• Jimma Times, owner of the Ethiopian newspaper Yeroo
• Jornal da Tarde, a Brazilian newspaper from São Paulo
• JT (James Taylor album), 1977
• J.T. (Steve Earle & The Dukes album), 2021
• J.T. Lambert, a character in the American television sitcom Step by Step
• J.T. Martin, a character in the TV sitcom Silver Spoons
• JT LeRoy, a literary persona created in the 1990s by American writer Laura Albert
• J.T. Yorke, a character in Degrassi: The Next Generation

• Japan Tobacco, a cigarette manufacturer
• Jersey Telecom, the Jersey telephone company
• JT, the IATA airline designator for Lion Air

• James "J.T." Taylor (born 1953), lead singer of the band Kool and the Gang
• JT the Bigga Figga (born 1971), a hip-hop artist and producer
• JT the Brick (born 1965), an American talk radio host
• J. T. Brown (disambiguation)
• JT Hodges (born 1977), country music singer
• JT Longoria, former member of the band Adler's Appetite
• JT Money (born 1972), American rapper
• J.T. Smith (disambiguation)
• J. T. Thomas (disambiguation)
• J. T. Walsh, American actor
• J. T. Wedgwood (1782–1856), an English line engraver
• Jerry Trainor (born 1977), American actor and comedian sometimes known as JT
• Justin Timberlake (born 1981), American singer and actor also known as JT
• Jatavia Johnson (born 1992), American rapper better known as JT

• J. T. Miller (born 1993), American ice hockey player
• J. T. O'Sullivan (born 1979), American football player
• J. T. Realmuto (born 1991), American baseball player
• J. T. Snow (born 1968), American baseball player
• J. T. Southern (born 1964), American former professional wrestler
• J. T. Thatcher (born 1978), American football player
• JT Woods (born 1999), American football player
• Jayson Tatum (born 1998), American basketball player
• Jesse Taylor (born 1984), mixed martial artist also known as JT Money
• John Tavares (born 1990), Canadian ice hockey player
• Johnathan Thurston (born 1983), an Australian rugby league footballer
• Justin Thomas (born 1993), American golfer

• Javier Torres Félix (born 1960), Mexican drug lord also known for his alias J.T.
• J.T. Larson (born 2001), American politician
• Justin Trudeau (born 1971), 23rd Prime Minister of Canada

• Haplogroup JT (mtDNA), a human mitochondrial DNA haplogroup
• JT (visualization format), a 3D data format

• Junior technician, an airman rank
• Juneteenth
• {{JRLS|JT}}, symbol for the Tōkaidō Main Line operated by the East Japan Railway Company, and the Itō Line
• "Javelin throw" athletics abbreviation in track and field

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