English abbreviations from bkl to blc
- BKL (Burke Lakefront Airport)
- BKM (Bakalalan Airport)
- BKN (Broken Sky (METAR Code))
- BKO (Senou International Airport)
- BKP (Barkly Downs Airport)
- BKQ (Blackall Airport)
- BKR (Bokoro Airport)
- BKS (Padang Kemiling Airport (Fatmawati Soekarno Airport))
- BKSTS (British Kinematograph Sound and Television Society [UK])
- BKT (Allen C. Perkinson Airport / Blackstone Army Airfield)
- BKU (Betioky Airport)
- BKW (Raleigh County Memorial Airport)
- BKX (Brookings Regional Airport)
- BKY (Kavumu Airport)
- BKZ (Bukoba Airport)
- BL (Blank)
- B.L. (Bachelor of Law Sciences)
- BLA (Generál José Antonio Anzoátegui International Airport)
- BLAD (Basic Layout And Design)
- BLAST ((telescope) Balloon-borne Large Aperture Submillimeter Telescope)
- BLB (Howard Airport (private, former Howard AFB))
- BLC (Bali Airport)