| Abbreviation | Definition |
|---|---|
| IAEO | Independent African Election Observers |
| IAI | International African Institute |
| IARS | Institute for African Renaissance Studies |
| IAS | Independent African States |
| IAS | Institute of African Studies |
| IASB | International African Service Bureau |
| IASSA | International Aerospace Symposium of South Africa |
| IASSA | Investment Analysts Society of South Africa |
| IAVS | Illinois African Violet Society |
| IBSA | India Brazil and South Africa |
| IBSA | India Brazil South Africa |
| IBSA | International Bilingual Schools of Africa |
| ICACA | Int Centre For African Culture And Arts |
| ICARDA | International Center for Agricultural Research in the Dry Areas |
| ICASA | Independent Communication Authority Of South Africa |
| ICASA | Independent Communications Authority Of South Africa |
| ICCBA | International Center for Capacity Building in Africa |
| ICEA | Insurance Company of East Africa |
| ICJ | International Court of Justice |
| IDAP | Integrated Development Africa Programme |