BNL

BNL may refer to:

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

 * Block nested loop, an algorithm in computing