Posted in Aviation, Health & Medicine, Information Technology BAK stands for Backup (File Name Extension) BAK stands for Backspace BAK stands for Bundesarchitektenkammer BAK stands for Back At Keyboard BAK stands for Bundesamt für Kultur (German: Federal Office for Culture; Switzerland) BAK stands for Biking Across Kansas (bicycle tour) BAK stands for Bauartklasse (German insurance term) BAK stands for Berliner Arbeitskreis Information (German) BAK stands for Basic Aeronautical Knowledge BAK stands for Betrayal At Krondor (computer game) BAK stands for Bundesaufsichtsamt für das Kreditwesen (German banking supervisory board) BAK stands for Baku, Azerbaijan – Baku (Airport Code) BAK stands for Blut Alkohol Konzentration (German: blood alcohol level) BAK stands for Binary Adaption Kit BAK stands for Beitragsanpassungsklausel (German; legal insurance) BAK stands for Bewußtsein, Atmung, Kreislauf