| Abbreviation | Definition |
|---|---|
| ADIDAS | Adolph (Adi) Dassler |
| ADW | Aaron D. Wyner |
| AEK | Adolph Ernst Knoch |
| AF | Alexander Ferguson |
| AG | Al Gore |
| AG | Alan Greenspan |
| AGB | Alexander Graham Bell |
| AGF | Adela Garcia Friedmansky, fitness professional |
| AH | Adolf Hitler |
| AI | Allen Iverson, basketball player |
| AJ | Aaron Jackson |
| AJ | Action Jackson |
| AJ | Alexander Jones, author |
| AJ | Amanda Joy, a teen popstar and actress |
| AJ | Andrew Jackson |
| AJ | Angelina Jolie |
| AJL | Angela Jui Lee |
| AK | Alek Keshishian, film director |
| AK | Alexandra Kosteniuk |
| AK | Alicia Keys |