BLL

BLL may refer to:

Places

 * Bardon Mill railway station (station code ), Bardon Mill, Northumberland, England, UK
 * Billund Airport (IATA airport code )
 * Bloemendaal railway station (station code ); see Railway stations in the Netherlands

Groups, companies, organizations

 * Ball Corporation (NYSE ticker symbol )
 * Baltic Airlines (ICAO airline code ); see List of airline codes (B)
 * Box Lacrosse League

Other uses

 * Bachelor of Laws (B.LL)
 * Blood lead level
 * Business logic layer