BNL may refer to:
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Entertainment
- Banjo Newsletter, a magazine devoted to the 5-string banjo
- Barenaked Ladies, a rock band from Canada
- Basketball National League, South Africa's top basketball division
- British National League (disambiguation), two former ice hockey leagues
- Buy-n-Large, a fictional megacorporation featured in the movie WALL-E
Organisations
- Banca Nazionale del Lavoro, an Italian bank
- Brookhaven National Laboratory, New York, US
Other uses
- Uptown Station, train station in Normal, Illinois, USA; Amtrak station code BNL
- Block nested loop, an algorithm in computing