| ADC | Association Of District Councils | - | Chatting Acronyms |
| ADR | American Depository Receipt | - | Chatting Acronyms |
| AEF | Aggregate External Finance | - | Chatting Acronyms |
| AIG | American International Group | - | Chatting Acronyms |
| AIR | Assumed Interest Rate | - | Chatting Acronyms |
| ALACE | Association Of Local Authority Chief Executives | - | Chatting Acronyms |
| AME | Annually Managed Expenditure | - | Chatting Acronyms |
| AMEX | American Express (credit Card) | - | Chatting Acronyms |
| APR | Annual Percentage Rate | - | Chatting Acronyms |
| ARM | Adjustable Rate Mortgage | - | Chatting Acronyms |
| ARS | Auction Rate Securities | - | Chatting Acronyms |
| ATM | Automated Teller Machine | - | Chatting Acronyms |
