| Abbreviation | Definition |
|---|---|
| 53 | 5/3rd Bank |
| A&L | Assets and Liabilities |
| AA | Agricultural Assistant |
| AAA | Askari Asaan Account |
| AACB | ABN AMRO Clearing Bank |
| AACB | Adazi Ani Community Bank |
| AACB | Association of African Central Banks |
| AATB | American Association of Tissue Banks |
| AAVS | Automatic Add Value Service |
| AAVS | Automatic Add-Value Service |
| AAWB | Assistance to Agriculture in the West Bank |
| AB | Australian Banking |
| ABA | American Bankers Association |
| ABB | Affin Bank Berhad |
| ABBS | Any Branch Banking Service |
| ABC | Agricultural Bank of China |
| ABCA | Annual Bank Conference on Africa |
| ABCB | African Banking Corporation of Botswana |
| ABCDE | Annual Bank Conference on Development Economics |
| ABCDE | Annual Bank Conferences on Development Economics |