English abbreviations from aaalac to aac
- AAALAC (Association for the Assessment and Accreditation of Laboratory Animal Care International)
- AAALI (Act Against AIDS Leadership Initiative)
- AAAM (Association for Advancement of Automotive Medicine)
- AAAOB (Anti Aircraft Artillery Order Of Battle)
- AAAS (American Association for the Advancement of Science)
- AAAT (Armand Arabian Advocacy Tournament)
- AAATP (Australian Autoglazier Accreditation Training Program)
- AAAV (Advanced Amphibious Assault Vehicle)
- AAB (Arrabury Airport)
- AABB (AABB, formerly known as the American Association of Blood Banks)
- AABC (Alberta Associations for Bright Children)
- AABE (American Association of Blacks in Energy)
- AABF (Asian American Bar Foundation)
- AABF-H (Asian-American Bar Foundation - Houston)
- AABMDR (American Association of Bone Marrow Donor Registries)
- AABNCP (Advanced AirBorne National Command Post)
- AABP (Alliance of Area Business Publications)
- AABWS (Amphibious Assault Bulk Water System)
- AAC (Advanced Audio Coding)