| Acronym | Definition |
|---|
| ICAA | International Council on Active Aging |
| ICAA | International Council on Alcohol and Addictions |
| ICAA | Insulation Contractors Association of America |
| ICAA | Investment Counsel Association of America (now Investment Adviser Association) |
| ICAA | Institute of Chartered Accountants of Alberta |
| ICAA | Institute of Chartered Accountants of Australia |
| ICAA | International Christian Accrediting Association |
| ICAA | Iowa County Attorneys Association |
| ICAA | Iowa Community Action Association |
| ICAA | Illinois Community Action Association |
| ICAA | International Comic Arts Association |
| ICAA | Icelandic Civil Aviation Administration |
| ICAA | International Civil Airports Association (Paris, France) |
| ICAA | International Conference on Aluminum Alloys |
| ICAA | International Colored Appaloosa Association |
| ICAA | Immigrant Culture and Art Association (Canada) |
| ICAA | International Curriculum and Assessment Agency |
| ICAA | International Civil Aviation Authority |
| ICAA | International Council of Accrediting Agencies |
| ICAA | International Curriculum Assessment Agency |
| ICAA | International Coalition for Autism and All Abilities (Arnold, MO) |
| ICAA | Invalid Children's Aid Association |
| ICAA | Indonesian Chinese American Association |
| ICAA | International Congress on Alcohol and Addictions |
| ICAA | Inner City Athletic Association |
| ICAA | Immaculate Conception Athletic Association (Arnold, MO) |
| ICAA | Indiana County Assessors Association |
| ICAA | Investment Capability Analysis and Assessment |
| ICAA | International Council on Alcoholism and Addiction |
| ICAA | Intercollegiate Conference Athletic Association |
| ICAA | International Chiropractors Association Auxiliary |
| ICAA | Iona College Alumni Association |
| ICAA | Indiana Community Action Association, Inc. |
| ICAA | Inorganic Chemically Active Adsorbents |
| ICAA | Innis College Alumni Association |
| ICAA | Israel Cooperation of Agricultural Application |
| ICAA | International Conference on Autonomous Agents (computer science) |