| Acronym | Definition |
|---|
| JB➣Just Because (various organizations) |
| JB➣Jonas Brothers (band) |
| JB➣James Brown |
| JB➣Journal of Bacteriology |
| JB➣Johor Bahru |
| JB➣Jornal do Brasil |
| JB➣James Bond |
| JB➣Job Board |
| JB➣Jack Black (actor) |
| JB➣Justin Bieber (musician) |
| JB➣James Blunt (musician) |
| JB➣Jailbreak (gaming) |
| JB➣Jelly Belly |
| JB➣Jim Beam (whiskey) |
| JB➣Journal of Biochemistry |
| JB➣Junction Box |
| JB➣Jelly Beans |
| JB➣Jersey Boys |
| JB➣Jim Brown (NFL runningback) |
| JB➣Jingle Bells (song) |
| JB➣Jenson Button (F1 driver) |
| JB➣Jack Bauer ('24' TV show character) |
| JB➣Jacob Black (Twilight series character) |
| JB➣jetBlue Airways |
| JB➣Jerusalem Bible |
| JB➣Jeb Bush (Florida Governor) |
| JB➣Jump If Below (assembly language) |
| JB➣Jimmy Buffet |
| JB➣Jungle Brothers (band) |
| JB➣Johannes Brahms (classical composer) |
| JB➣Jollibee (Filipino fast food restaurant chain) |
| JB➣Jello Biafra (Dead Kennedys band member) |
| JB➣Johnny Bravo (cartoon show) |
| JB➣John Burroughs (Middle and High Schools, Los Angeles, CA) |
| JB➣Juice Box (various products) |
| JB➣Jerome Bettis (football player) |
| JB➣Japanese Beetle |
| JB➣Jail Bait |
| JB➣Jyske Bank (Bank of Jutland, Denmark) |
| JB➣Juridische Bibliotheek |
| JB➣Jim Boeheim (basketball coach) |
| JB➣Jarque-Bera (statistics) |
| JB➣Jerky Boys (movie) |
| JB➣Joe Boxer |
| JB➣Joseph-Beth (bookstore chain) |
| JB➣Jura Bernois (region in Switzerland) |
| JB➣Joint Army-Navy Board (US DoD) |
| JB➣Jonathan Bender (NBA player) |
| JB➣Jail Birds |
| JB➣Jonny Bravo |
| JB➣Justerini & Brooks(Whiskey) |
| JB➣Job Books |
| JB➣Junctional Bradycardia |
| JB➣Johann Bach (baroque composer) |
| JB➣JavaBoard |
| JB➣Joyful Being (social group; Georgia) |