BWL

The acronym BWL means:


 * U.S. Army Biological Warfare Laboratories
 * Internet slang for "Bursting with laughter" (See LOL)
 * British Workers League
 * Birch Wathen Lenox School in New York City
 * Lambert, W. G., Babylonian Wisdom Literature, sometimes cited in academic papers on the Book of Job
 * ICAO airline code for defunct airline British World Airlines
 * IBM Blueworks Live - a business process modelling tool sold by IBM
 * Lansing Board of Water & Light, public utility in Lansing, Michigan
 * The Batman Who Laughs, fictional DC supervillain