BLK may refer to:
Locations Blackpool Airport (BLK), airport in England Burgenlandkreis (BLK), district in Saxony-Anhalt, Germany
Organisations BLK, an Australian sports clothing company BlackRock, the American investment management firm Basket Liga Kobiet (Women's Basketball League), the top women's basketball league in Poland
Brands BLK (magazine), 1988–1994 US magazine Bonluck, a Chinese bus manufacturer Mercedes Benz BLK-Class
Other BLK (gene), gene in humans B lymphocyte kinase Ray BLK, a British singer Pa'O language (ISO 639-3 code blk) .300 AAC Blackout designated as the 300 BLK by the SAAMI
See also