2 Answers

Acronym     Definition
JB     Jonas Brothers (band)
JB     James Brown
JB     Journal of Bacteriology
JB     Johor Bahru
JB     Jornal do Brasil
JB     James Bond
JB     Jack Black (actor)
JB     Justin Bieber (musician)
JB     James Blunt (musician)
JB     Jailbreak (gaming)
JB     Jelly Belly

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     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     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)
JB     Job Board

acronyms.thefreedictionary.com

Jim Beam?

I know him when I have a bottle of coke and ice to go with :)