BBL or bbl may refer to:
Banks
- Bank Bruxelles Lambert, a Belgian bank, now merged into ING Group
- Bangkok Bank, a Thai commercial bank (Stock symbol: BBL)
Science and medicine
- Barrel (unit), measurement of volume with unit symbol bbl
- Benthic boundary layer, the layer of water at the bottom of a body of water
- Bird Banding Laboratory
- Brazilian butt lift, a form of buttock augmentation using autologous fat injection
Sports and pastimes
- Big Bash League, an Australian Twenty20 cricket tournament
- Baltic Basketball League
- Basketball Bundesliga
- British Basketball League
- British Bridge League
Transport
- Ballera Airport, IATA airport code "BBL"
- Bat & Ball railway station, Kent, England, National Rail station code "BBL"
Other
- Bangsamoro Basic Law
- Bats language (ISO-639-3-Code)
- BBL Pipeline from the Netherlands to England
- Borough, Block and Lot, New York City real estate identifier
- British Brothers' League, an anti-immigration organisation, 1901–1923
- Bubble Gang, a Philippine comedy show known on-air as BBLGANG or simply BBL since 2023
- BBL Drizzy, an instrumental track created by American producer Metro Boomin
- .bbl, filename extension produced by BibTeX
