| Acronym | Definition |
|---|
| KBr | Potassium Bromide |
| KBr | Kellogg, Brown and Root |
| KBr | Kabardino-Balkarian Republic (Russia) |
| KBr | Kluczowy Biegly Rewident (Polish: Key Certified Auditor) |
| KBr | Knights of the Black Rose (gaming clan) |
| KBr | Key-Based Routing |
| KBr | Knock Back Resist (gaming) |
| KBr | Kota Bharu, Malaysia - Sultan Ismail Petra (Airport Code) |
| KBr | Koninklijke Bibliotheek van België / Bibliothèque royale de Belgique (Royal Library of Belgium Brussels, Belgium) |
| KBr | Key Business Requirement |
| KBr | Key Business Ratio (financial measurement) |