| Abbreviation | Definition |
|---|---|
| IABA | Indonesian Association of British Alumni |
| IACC | Indonesian Association for Clinical Chemistry |
| IAFT | Indonesian Association of Food Technologists |
| IAIC | Indonesian Association on Information and Computing |
| IAIN | Institut Agama Islam Negeri |
| IAPA | Indonesian Association for Public Administration |
| IAQA | Indonesian Agricultural Quarantine Agency |
| IBLS | Indonesian Business Law and Society |
| IBLS | Indonesian Business Law Society |
| IBM | I Balik Malam |
| IBRA | Indonesian Bank Restructuring Agency |
| ICBB | Indonesian Center for Biodiversity and Biotechnology |
| ICE | Indonesian Convention Exhibition |
| ICMI | Ikatan Cendekiawan Muslim se-Indonesia |
| ICMR | Indonesian Capital Market Review |
| ICPR | Indonesian Coal Price Reference |
| ICRP | Indonesian Conference on Religion and Peace |
| IDAI | Ikatan Dokter Anak Indonesia |
| IDBC | Indonesian Diaspora Business Council |
| IDBP | Indonesian Domestic Biogas Programme |