| Acronym | Definition |
|---|
| ISHA | Illinois Speech-Language-Hearing Association |
| ISHA | International Students of History Association |
| ISHA | International Skiing History Association |
| ISHA | Indian Society of Health Administrators |
| ISHA | Islington and Shoreditch Housing Association (UK) |
| ISHA | Indiana Speech-Language-Hearing Association |
| ISHA | International Sports Heritage Association |
| ISHA | Idaho Speech-Language-Hearing Association (Nampa, ID) |
| ISHA | InterSource Hardware Asia |
| ISHA | Industrial Safety and Health Association |
| ISHA | International Subterranean Heritage Association |
| ISHA | Indian Speech and Hearing Association |
| ISHA | Institut Scientifique d'Hygiène et d'Analyse (France) |
| ISHA | Institut Scientifique d'Hygiène Alimentaire (France) |
| ISHA | International Sheep Hunters Association (Cody, Wyoming) |
| ISHA | Indiana Speech and Hearing Association |
| ISHA | Industrial Safety and Health Act |
| ISHA | International Studies of HIV/AIDS |
| ISHA | Israel Health Advancement for Women |
| ISHA | Indiana Saddle Horse Association (Cloverdale, IN) |
| ISHA | Interdisciplinary Seminar in the Humanities and Fine Arts |
| ISHA | Independent School Health Association |
| ISHA | Illinois School Health Association |
| ISHA | Irish Student Health Association |
| ISHA | International Student Humanitarian Award |
| ISHA | International Student Hospitality Association |
| ISHA | International Senior Health Adviser |
| ISHA | International Students in History Association |
| ISHA | Iowa Society of Healthcare Attorneys |
| ISHA | International Small Hands Academy |
| ISHA | IAENG Society for HIV/AIDS |
| ISHA | Integrated System Hazard Analysis |
| ISHA | Institute of Spiritual Healing and Aromatherapy, Inc. |
| ISHA | International Specimen Hunters Association |
| ISHA | International Spelean Heritage Association |
| ISHA | Interdisciplinary Seminar in the Humanities and Arts |
| ISHA | Initiative Sexual Health Awareness |
| ISHA | Intermountain Ski History Association |
| ISHA | International Sikh Heritage Association, Inc. (Washington, DC) |
| ISHA | Iowa Stock Horse Association (Iowa City, IA) |
| ISHA | Israel Secular Humanist Association |
| ISHA | International Shinson Hapkido Association eV |
| ISHA | Illinois State Hospice Association |
| ISHA | Indian Springs High School (Indian Springs, NV) |