| Abbreviation | Definition |
|---|---|
| APHA-ICEHS | Injury Control and Emergency Health Services Section of the American Public Health Association |
| APHL | Association of Public Health Laboratories |
| APHP | Association of Professional Heritage Practitioners |
| API | American Paper Institute |
| API | American Petroleum Institute |
| API | Association of Private Investigators |
| APIA | Asia Pacific Internet Association |
| APIA | Australian Pipeline Industry Association |
| APIC | Association for Professionals in Infection control and Epidemiology |
| APICS | American Production and Inventory Control Society |
| APLA | Asia Pacific Lottery Association |
| APLA | Association For Political And Legal Anthropology |
| APLA | Association Of Public Library Administrators |
| APLA | Atlantic Provinces Library Association |
| APLA | Australian Plaintiff Lawyers Association |
| APLB | Association For Pet Loss Bereavement |
| APLS | Association for Politics and the Life Sciences |
| APMA | American Podiatric Medical Association |
| APME | Association Of Plastics Manufacturers Europe |
| APMI | American Powder Metallurgy Institute |