- B4B stands for Bang for Buck (Internet slang)
- B4B stands for Bargains 4 Business (Australia)
- B4B stands for Beanies for Baghdad (charitable organization)
- B4B stands for Billionaires for Bush (political group)
- B4B stands for Blogging for Books (Joshilyn Jackson monthly writing contest)
- B4B stands for Brothers 4 Brothers
- B4B stands for Business for Business
B4B