BBN

BBN might refer to:BBN The Business Branding Network, an international network of marketing and communications agencies with members in over 20 worldwide locations

* BBN Technologies, formerly Bolt, Beranek and Newman, a technology company in Cambridge, Massachusetts, best known for its work on packet switching technology and its construction of the Interface Message Processor - the first router.
* Bible Broadcasting Network, a global Christian radio network headquartered in Charlotte, North Carolina
* Big Bang nucleosynthesis
* Big Brother Nigeria, a reality show which took place in Nigeria
* Bayesian belief network, also known as Bayesian network.
* Buckingham Browne & Nichols School (BB&N), a private school in Cambridge, Massachusetts
* [9-Borabicyclononane|9-Borabicyclo [3.3.1] nonane] (9-BBN), a reagent used in organic chemistry