| Acronym | Definition |
|---|
| IIB | Indian Institute of Bankers (now Indian Institute of Banking & Financing) |
| IIB | Institute for Independent Business |
| IIB | International Institute of Buffalo (Buffalo, NY) |
| IIB | International Investment Bank |
| IIB | Islamic Investment Bank |
| IIB | International Islamic Bank |
| IIB | Institute of International Business |
| IIB | International Insurance Brokers, Ltd. (Tulsa, OK) |
| IIB | Institute of International Bankers |
| IIB | Infections and Immunoepidemiology Branch (National Cancer Institute) |
| IIB | Ice, Ice, Baby (Vanilla Ice song) |
| IIB | Included in Bankruptcy |
| IIB | Interagency Information Bureau (US DoD) |
| IIB | Indian Institute of Banking & Finance |
| IIB | Impairment Income Benefits (worker's compensation; taxes) |
| IIB | Interagency Investigation Board |