| Abbreviation | Definition |
|---|---|
| ISB | In Store Bank |
| ISB | International Soccer Bank |
| ISB | Investment Savings Bank |
| ISBI | International Savings Banks Institute |
| ISBP | international standard banking practices |
| ISBS | Integrated Standard Banking System |
| ISBT | Iowa State Bank & Trust Company |
| ISC | Intermediat Service Charge |
| ISIB | International Securities, Investment and Banking |
| ISNB | Insured State Nonmember Bank |
| ISPD | International Surface Pressure Databank |
| ISRB | Insight Score for Retail Banking |
| ISSB | Iowa State Savings Bank |
| ITBS | International Trade in Banking Services |
| ITDB | International TIR Data bank |
| ITDB | International Trauma Data Bank |
| ITMCB | Information Technology Management for Community Bank |
| ITR | International Treasury Request |
| ITSB | Iowa Trust and Savings Bank |
| IWB | i Wealthview Banking |