| Abbreviation | Definition |
|---|---|
| IAAI | International Association of Arson Investigators |
| IAAIEF | International Association of Arson Investigators Educational Foundation |
| IAAP | International Assistance and Adoption Project |
| IAASA | Itasca Alliance Against Sexual Assault |
| IABTI | International Aaaociation of Bomb Technicians and Investigators |
| IAC | Immunization Action Coalition |
| IAC | International Action Center |
| IAC | Intersocietal Accreditation Commission |
| IACC | Interagency Autism Coordinating Committee |
| IACC | International Anti-Counterfeiting Coalition |
| IACCM | International Association for Contract and Commercial Management |
| IACHR | Inter-American Commission on Human Rights |
| IACO | Indo-American Cancer Organization |
| IACO | International Aid and Cooperation Organization |
| IACR | India Alliance for Child Rights |
| IACR | International Association of Cancer Registries |
| IADIS | International Association for Development of the Information Society |
| IADR | International Association for Dental Research |
| IAEA | Indian Adult Education Association |
| IAEA | International Association for Educational Assessment |