| Abbreviation | Definition |
|---|---|
| AJ | Auntie Jill |
| AJ | Austen James |
| AJ | Ayesha Jilani |
| AJW | Andrew Jonathan White |
| AK | Abdul Kareem |
| AK | Adam Kershaw |
| AK | Aditya Krishnan |
| AK | Albert Kim |
| AK | Alexis Katherine |
| AK | Alice Kline |
| AK | Allwyn Kalicharan |
| AK | Amanda Kay |
| AK | Amy Kathleen |
| AK | Ana Kristine |
| AK | Annie Kries |
| AKA | Anna Katherine Amirov |
| AL | Adrienne Lynne |
| ALAN | Alanson |
| ALEX | Alexander |
| ALEX | Alexandera |