| Abbreviation | Definition |
|---|---|
| APP | Automobile Purchase Plan |
| APR | Average Payment Rate |
| APRB | Arunachal Pradesh Rural Bank |
| AQB | Average Quarterly Balance |
| AR | Automatic Remuneration |
| ARB | Assessment Resource Banks |
| ARB | Association of Russian Banks |
| ARHFE | Ay! right here, free educational indoctrination! |
| ARM | Approved Reporting Mechanism |
| ARR | adjusted rate ratio |
| ARR | Annual Recurring Revenue |
| ASB | American Savings Bank |
| ASB | Auckland Saving Bank |
| ASB | Auckland Savings Bank |
| ASLB | Administrator Sick Leave Bank |
| ASRB | Australian Schizophrenia Research Bank |
| ASVB | Australian Social Value Bank |
| ATB | Arab Tunisian Bank |
| ATM | Any Time Money |
| ATM | At The Moment |