| Acronym | Definition |
|---|
| BJ | Blow Job |
| BJ | Blackjack |
| BJ | Beijing (China) |
| BJ | Bubble-Jet (Canon) |
| BJ | Bon Jovi (band) |
| BJ | Beijo (Portuguese: Kiss) |
| BJ | Boca Juniors (soccer; Argentina) |
| BJ | Billy Joel (singer) |
| BJ | Blue Jays (baseball team) |
| BJ | Billie Jean (Michal Jackson song) |
| BJ | Blue Jeans |
| BJ | Baujahr (German: year of construction) |
| BJ | Bonjour (French: hello) |
| BJ | Ball Joint (mechanical) |
| BJ | Billie Joe Armstrong (Green Day) |
| BJ | Ben and Jerry's |
| BJ | Baby Jane |
| BJ | Brian Jones (Rolling Stones member) |
| BJ | Broadcast Jockey (South Korea) |
| BJ | Bundesamt für Justiz (Federal Office of Justice, Switzerland) |
| BJ | Bad Job |
| BJ | Big Job |
| BJ | Biochemical Journal |
| BJ | Bobby Jackson (basketball player) |
| BJ | Blonde Joke |
| BJ | Broad Jump |
| BJ | Bob Jones University |
| BJ | Business Justification |
| BJ | Before Jesus |
| BJ | Back Judge (football) |
| BJ | Bachelor of Journalism |
| BJ | Brand Jordan |
| BJ | Beverly Jean (from BJ's Wholesale Club; retailer named for founder's daughter) |
| BJ | Beth Jacob (Synagogue) |
| BJ | Brian Jacques (author) |
| BJ | B'nai Jeshurun (New York) |
| BJ | Byron Jackson (Byron Jackson Company) |
| BJ | Bill Joy (designer of Berkeley UNIX BSD, Chief Scientist of Sun Microsystems) |
| BJ | Blueberry Juice |
| BJ | Bierjunge (German: Beer Boy) |
| BJ | Bulkhead Jack |
| BJ | Breakfast Jack (Jack in the Box Sandwich) |
| BJ | Bunjee Jump |
| BJ | Bai Jiu (Chinese wine) |
| BJ | Bomberman Jetters (video game) |
| BJ | Bantam Jack (test connector) |
| BJ | Barrage Jammer |