| ABI | Available Bandwidth Index |
|---|---|
| ABM | Access Bandwidth Manager |
| ABN | Alarm Broadband Network |
| ABR | Average Bandwidth Requirement |
| ABS | Alternative Bank Schweiz, švajčiarska banka so sídlom v Oltene |
| ABS | nemecký bankár (Hermann Josef, 1901-1994) |
| ADE | albánske mesto |
| AGB | Agrobanka (skr.) |
| AKB | Aargaunische Kantonal Bank (skr.) |
| AKL | libanonský básnik (Sa'id) |