| Abbreviation | Definition |
|---|---|
| IBFB | International Business Forum of Bangladesh |
| IBFC | Illini Badger Football Conference |
| IBFC | International Bull Fertility Conference |
| IBFI | Internationales Begegnungs- und Forschungszentrum fur Informatik |
| IBFK | International Book Festival, Kochi |
| IBFM | International Book Fair Monterrey |
| IBLC | International Business Law Conference |
| IBLC | Italian Biotech Law Conference |
| IBLV | In Business Las Vegas |
| IBMM | International Conference on Ion Beam Modification of Materials |
| IBPC | International Building Physics Conference |
| IBPSA | International Building Performance Simulation Association |
| IBRC | International Bat Research Conference |
| IBS | International Builders Show |
| IBSC | Integration Business Survival Conference |
| IBSC | Iowa Biotech Showcase and Conference |
| ICAA | International Conference on Aluminium Alloys |
| ICAAC | Interscience Conference on Antimicrobial Agents and Chemotherapy |
| ICAAP | International Conference on AIDS in Asia Pacific |
| ICABS | International Conference on Advances in Biological Sciences |