| AAB | Application Architecture Blueprint |
|---|---|
| AAB | Asociación Andaluza de Bibliotecarios |
| AAB | Association of Applied Biologists |
| AAF | Audit Automation Facilities |
| AAN | Application-Aware Network |
| AANO | starší nórsky politik a misionár |
| AAR | American Academy of Religion |
| AAS | Association African Solidarité |
| ABA | Agent-Based Application |
| ABAFI | slovenský politik, cestovateľ, revolucionár (František, 1732-1817) |