- B3 stands for Beauty, Brains and Beyond (website)
- B3 stands for Blah Blah Blah
- B3 stands for Bon-Bon Blanco (band; Japan)
- B3 stands for Builders Beyond Borders (Norwalk, CT)
- B3 stands for Burnout 3: Takedown (video game)
Abbreviations And Their Meaning