| Acronym | Definition |
|---|
| BNL | Brookhaven National Laboratory (Upton, NY) |
| BNL | Brother-in-Law |
| BNL | Bloomington-Normal (Amtrak station code; Bloomington-Normal, IL) |
| BNL | Banca Nazionale del Lavoro |
| BNL | Bare Naked Ladies (band) |
| BNL | Berkeley National Laboratory |
| BNL | Box Number Location |
| BNL | Bibliothèque Nationale de Luxembourg (French) |
| BNL | Base Naval de Lisboa (Portuguese: Lisbon Naval Base; Portugal) |
| BNL | Battelle-Northwest Laboratories |
| BNL | Bloomington-Normal Illinois (airport code) |
| BNL | Bicycle Newfoundland & Labrador (Canada) |
| BNL | Belgium, the Netherlands & Luxemburg |