| AAB | Aalborg Boldspilklub (skr.) |
|---|---|
| AAB | Advertising Association of Baltimore |
| AAB | Alliance Agricole Belge |
| AAB | American Association of Bioanalytics |
| AAB | Annals of Applied Biology |
| AAB | Asociación Andaluza de Bibliotecarios |
| AAB | Australasian Associated Brewers |
| AAC | Alliance Agricole Belge |
| AAE | Australian Air Express |
| AAI | Alliance of American Insurers |