| Acronym | Definition |
|---|
| BSEI➣Bahrain Stock Exchange Index |
| BSEI➣Bureau de la Sécurité des Équipements Industriels (French: Safety Office of Industrial Equipment) |
| BSEI➣Big Sur Environmental Institute (California) |
| BSEI➣Beam Steering Electrical Interface |
| BSEI➣Berkeley Summer Engineering Institute (University of California, Berkeley; Berkeley, CA) |