AYF
| Acronym | Definition |
|---|---|
| AYF | American Youth Foundation |
| AYF | American Youth Football (est. 1996) |
| AYF | Armenian Youth Federation |
| AYF | African Youth Foundation (est. 2000; Germany) |
| AYF | Asian Youth Fellowship (Japan) |
| AYF | Australian Yachting Federation |
| AYF | Australian Youth Forum |