| Abbreviation | Definition |
|---|---|
| IOB | Indian Overseas Bank |
| IOB | Indian Overseas Bank's |
| IOBOA | Indian Overseas Bank Officers Association |
| IOER | Interest On Excess Reserves |
| IOR | Institute for Religious Works (Vatican Bank) |
| IOS | Inspection Operation System |
| IPAB | Intellectual Property Appellate Board |
| IPB | Institute of Professional Banking |
| IPB | International Personal Banking |
| IPB | Israeli Phage Bank |
| IPBS | International Private Banking Systems |
| IPO | Initial Public Offer |
| IPPB | India Post Payment Bank |
| IPPB | India Post Payments Bank |
| IPPB | Indian Post Payments Bank |
| IRC | Interest Rate Ceiling |
| IRDA | Insurance Regulatory and Development Authority |
| IRDB | International Reconstruction and Development Bank |
| IRH | Interest Rate Hike |
| IRRBB | Interest Rate Risk In The Banking Book |