English abbreviations from bai to bao
- BAI (Battlefield Air Interdiction)
- BAIR (Battlefield Automation Integration Review)
- BAJ (Bali Airport)
- bak (Bashkir language (ISO 639-2 code))
- BAKA (Bay Area Killifish Association)
- BAL (Batman Airport)
- BALC (Bharatiya Academy of Linguistics and Communication)
- BALCO (Bay Area Laboratory Co-operative)
- BALLE (Business Alliance for Local Living Economies)
- BALO (Battalion Air Liaison Officer)
- bam (Bambara language (ISO 639-2 code))
- BAMC (Brooke Army Medical Center)
- BAMD (Battlefield Automation Management Directorate)
- BAMM (Baseball Academy Of Mid Michigan)
- BAMP (Battlefield Automation Management Program)
- BAN (Basongo Airport)
- BANA (Build A New America)
- BANC (Badminton Association of Northern California)
- Banesto (Banco Español de Crédito (Spanish, "Spanish Credit Bank"))
- BANG (Bits, Atoms, Neurons, Genes)
- BAO (Battlefield Air Operations)