| Abbreviation | Definition |
|---|---|
| AWNY | Australian Women in New York |
| AWOL | Animals With Our Love |
| AWON | American WW-II Orphans Network |
| AWPA | American Wood Preservers Association |
| AWSA | Advanced Writers And Speakers Association |
| AWSA | Australia Western Sahara Association |
| AWWB | A Wise Woman Builds |
| AYDA | Asian Youth Development Agency |
| AYDAP | Asian Youth Development Agency Pakistan |
| AYEDI | Afghan Youth Engagement and Development Initiative |
| AYF | Armenian Youth Federation |
| AYH | American Youth Hostels |
| AYHI | American Youth Hostels, Inc. |
| AZA | Association of Zoos and Aquariums |
| AZZ | Agogische Zorgcentra Zeeland (Dutch: Zealand Care Foundation) |
| B&VI | Blind and Visually Impaired |
| B.B. | Boys Brigade (U.K.) |
| B1G1 | Buy One Give One |
| BA | Busy Ambassador |
| BAA | Bay Area Action |