| Abbreviation | Definition |
|---|---|
| ABPS | Association of British Philatelic Societies |
| ABPT | Association of Blind Piano Tuners |
| ABRA | Association of Behavioural Researchers on Asians |
| ABRF | Association of Biomolecular Research Facilities |
| ABRF | Association of Biomolecular Resource Facilities |
| ABS | Association for Borderlands Studies |
| ABS | Association of Breast Surgery |
| ABS | Association of Business Schools |
| ABSA | African Baseball & Softball Association |
| ABSA | Ahlul Bayt Student Association |
| ABSA | Alberta Boiler Saftey Association |
| ABSA | Alberta Boilers Safety Association |
| ABSA | Asian Business Student Association |
| ABSA | Association of Building Sustainability Assessors |
| ABSA | Australian Bird Study Association |
| ABSA | Australian Boarding School Association |
| ABSC | Association of Black Sexologists and Clinicians |
| ABSI | Association of Body Shape Index |
| ABSL | Association of Business Service Leaders |
| ABSP | Association for Baha'i Studies in Persian |