BFSB
| Acronym | Definition |
|---|---|
| BFSB | Bahamas Financial Services Board |
| BFSB | Brooklyn Federal Bancorp, Inc. |
| BFSB | Battlefield Surveillance Brigade (US Army) |
| BFSB | Beaupréau Fief Sauvin Basket (French basketball club) |
| BFSB | Boston Federal Savings Bank (Lexington, MA) |