| Acronym | Definition |
|---|
| BKL | BKL Architecture LLC (formerly Brininstool, Kerwin and Lynch; Chicago, IL) |
| BKL | Big Kernel Lock |
| BKL | Bill Koch League (skiing) |
| BKL | Bae, Kim & Lee (law firm; South Korea) |
| BKL | Buttock-Knee Length (anatomy) |
| BKL | Bundesverband Klinische Linguistik (German: Association of Clinical Linguistics) |
| BKL | Burke Lakefront Airport, Cleveland, Ohio (Airport Code) |
| BKL | Berg Kaprow Lewis LLP (accounting; London, England, UK) |
| BKL | Belinsky-Khalatnikov-Lifshitz (evolution model) |
| BKL | Brignoles Karting Loisirs (French: Brignoles Karting Entertainment; Brignoles, France) |
| BKL | Bill Kenwright Limited (production company; UK) |
| BKL | Barron Kennedy Lyzun & Associates Ltd. (acoustical engineering consulting firm; Canada) |
| BKL | Biological Knowledge Laboratory (est. 1991; Northeastern University; Boston, MA) |