| Acronym | Definition |
|---|
| BAK➣Backup (File Name Extension) |
| BAK➣Backspace |
| BAK➣Bundesarchitektenkammer |
| BAK➣Backup File |
| BAK➣Broadcast Access Key |
| BAK➣Back At Keyboard |
| BAK➣Bundesamt für Kultur (German: Federal Office for Culture; Switzerland) |
| BAK➣Biking Across Kansas (bicycle tour) |
| BAK➣Bauartklasse (German insurance term) |
| BAK➣Berliner Arbeitskreis Information (German) |
| BAK➣Basic Aeronautical Knowledge |
| BAK➣Betrayal At Krondor (computer game) |
| BAK➣Bundesaufsichtsamt für das Kreditwesen (German banking supervisory board) |
| BAK➣Baku, Azerbaijan - Baku (Airport Code) |
| BAK➣Blut Alkohol Konzentration (German: blood alcohol level) |
| BAK➣Binary Adaption Kit |
| BAK➣Beitragsanpassungsklausel (German; legal insurance) |
| BAK➣Bosomtwe-Atwima-Kwanwoma (district; Ghana) |
| BAK➣Bewußtsein, Atmung, Kreislauf |
| BAK➣Bouviers d'Australie et des Kelpies (French: Australian Kelpie and Cattle Dog; dog club) |
| BAK➣Barrier Arresting Kit |
| BAK➣Bilateral Above Knee (amputation) |
| BAK➣Biohybrid Artificial Kidney |