| Acronym | Definition |
|---|
| IBI | Index of Biotic Integrity |
| IBI | Impuesto Sobre Bienes Inmuebles (Spain) |
| IBI | International Business Intelligence |
| IBI | in Band Interstitial |
| IBI | International Boat Industry |
| IBI | Impost de Bens Immobles (Portuguese: Real Estate Taxes) |
| IBI | Information-Based Indicia (USPS - Bar Code) |
| IBI | Institute of Bankers in Ireland |
| IBI | Intensive Behavioral Intervention |
| IBI | Integrated Benefits Institute (San Francisco, California) |
| IBI | International Bible Institute (Santa Fe Springs, CA) |
| IBI | Inter-Birth Interval (reproduction) |
| IBI | Integrated Business Intelligence (various locations) |
| IBI | International Business Incubator (San Jose, CA, USA) |
| IBI | Industry Builder Initiative (Microsoft) |
| IBI | Intergovernmental Bureau for Informatics |
| IBI | Inter-Block Interference |
| IBI | Iconic Beverages, Inc. (San Miguel Brewery, Inc.; Philippines) |
| IBI | Industrielle Betriebe Interlaken (Switzerland) |
| IBI | Internet Business Infrastructure (Narus) |
| IBI | Information Builders Incorporated |
| IBI | International Bureau of Investigation (Chamleon) |
| IBI | Item-by-Item (computer science) |
| IBI | International Billboard Identity |
| IBI | Illinois Bureau of Investigation |
| IBI | Intermedia Business Internet |
| IBI | International Biographical Index |
| IBI | Institutional Buy In |
| IBI | In-Band Interactivity |
| IBI | Institute of Biology Ireland |