| Acronym | Definition |
|---|
| BRAIN | Broadband Radio Access for IP-based Networks |
| BRAIN | Berlin Research Area Information Network |
| BRAIN | Biotechnology Research and Information Network AG (Germany) |
| BRAIN | Brent Resource and Information Network (community resource; UK) |
| BRAIN | Basic Research in Adaptive Intelligence and Neurocomputing |
| BRAIN | Berger Research and Information Network |
| BRAIN | Broadband Radio Access Integrated Network |
| BRAIN | Black Racial Attacks Independent Network (London, England, UK) |
| BRAIN | Basics, Repeat, Avoid, Inspire, Never (The Laws of Simplicity; John Maeda book) |
| BRAIN | BEST (Boosting Engineering Science and Technology) Robotics Artificial Intelligence Node (Sherman, Texas) |
| BRAIN | Bureau de Recherche d'Affaires et d'Informations de Namur (French: Bureau of Business Research and Information of Namur; Namur, Belgium) |