| Abbreviation | Definition |
|---|---|
| AAAF | Anguilla Amateur Athletic Federation |
| AAF | Asian American Federation |
| AAF | Asian Archery Federation |
| AAFB | American Advertising Federation of Baltimore |
| AAFI | Amateur Athletics Federation of India |
| AAPF | Amateur American Powerlifting Federation |
| AAPSF | American Airsoft Practical Shooting Federation |
| AASF | American Amateur Sambo Federation |
| AASF | Asian Amateur Swimming Federation |
| ABBF | Auckland Blood Bowl Federation |
| ABF | American Beekeeping Federation |
| ABF | Asian Bowling Federation |
| ABF | Asian Boxing Federation |
| ABFI | Amateur Baseball Federation of India |
| ABSF | Australian Blind Sports Federation |
| ACFF | Aspira Club Federation of Florida |
| ACFIC | All China Federation for Industry Commerce |
| ACFIC | All China Federation of Industry and Commerce |
| ACFIC | All China Federation of Industry Commerce |
| ACFWA | Australian Culinary Federation of Western Australia |