| 007 | James Bond | |
| A Rod | Alex Rodriguez | |
| AA | Apache Anne | |
| AA | Alan Alexander | |
| AA | Aiven Andrians | |
| AA | Arnold Arboretum | |
| AAFA | Antique Americana Folk Art | |
| AAW | Adolph A. Weinman, sculptor and coin designer | |
| AB | Angela Brant | |
| AB | Annie Besant | |
| AB | Allan Border | |
| AB | Americo Bartholomew | |
| ABD | American Born Desi | |
| ABE | Abraham Lincoln | |
| AC | Anne Cameron | |
| AC | Alvin Crawford | |
| AC | Alan Cox | |
| AC | Albert Champion | |
| ACC | Arthur C. Clarke | |
| ACM | Arthur C. Mills | |
| ACM | Antonio Carlos Magalhaes | |
| ACR | Alvah C. Roebuck (of Sears, Roebuck, and Company) | |
| ACY | Alvin C. York | |
| AD | Andrew Darnall | |
| ADIDAS | Adolph (Adi) Dassler | |
