| Abbreviation | Definition |
|---|---|
| IFSRA | Irish Financial Services Regulatory Authority |
| IGF | Interessen-Gemeinschaft Farben |
| IGI | International Genealogical Index |
| IH | International Headquarters |
| IIB | Institute of International Business |
| IIC | International Information Center |
| IIF | Institute of International Finance |
| IIRC | International Integrated Reporting Council |
| IIT | Intra-Industry Trade |
| IJCC | Israel Japan Chamber of Commerce |
| IJV | International Joint Venture |
| IKB | Integrale Keten Beheersing |
| IKM | Instrumentering, kalibrering og måling |
| ILC | International Language Center |
| ILO | International Labor Organization |
| IMB | International Maritime Boundary |
| IMC | International Market Center |
| IMC | International Merchandising Concept |
| IMD | Initial Marketing Data |
| IME | Iran Mercantile Exchange |