BLK

BLK may refer to:

  • BLK (gene), gene in humans
  • BLK (magazine), American magazine
  • blk. (water), a brand of beverage containing fulvic acid and appearing black in color.
  • Blackpool International Airport (BLK), airport in England
  • BlackRock, American investment management firm
  • Burgenlandkreis (BLK), district in Saxony-Anhalt, Germany