| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 441 | Attalus | Latin | Name of a king. | M | |
| 442 | Atthis | Latin | From Attica. | F | |
| 443 | Attica | Latin | From Attica. | F | |
| 444 | Attis | Latin | Name of a priest. | M | |
| 445 | Attracta | Latin | Drawn to. | F | |
| 446 | Aubin | Latin | White. | M | |
| 447 | Aubyn | Latin | White. | M | |
| 448 | Auerlio | Latin | Go!den. | M | |
| 449 | Aufidus | Latin | From the river Apulia. | M | |
| 450 | Augeas | Latin | King of Elis. | M | |
| 451 | Augie | Latin | Diminutive of August: Deserving of respect. | M | |
| 452 | August | Latin | Majestic dignity; grandeur. St. Augustine was the first Archbishop of Canterbury. | M | |
| 453 | Augusta | Latin | Majestic, grand. The feminine form of Augustus; meaning majestic dignity or venerable, originally given to female relatives of Roman emperors. Famous bearer: British King George III's mother was named Augusta. | F | |
| 454 | Augustin | Latin | From Augustus meaning magic majestic, dignity, or venerable. | M | |
| 455 | Augustina | Latin | Variant of Augusta: Majestic, grand. The feminine form of Augustus; meaning majestic dignity or venerable, originally given to female relatives of Roman emperors. | F | |
| 456 | Augustine | Latin | Deserving of respect; majestic. | F | |
| 457 | Augustine | Latin | From Augustus meaning magic majestic, dignity, or venerable. Augustine was the first Archbishop of Canterbury, sent to Britain as a missionary by the pope in the 6th century. | M | |
| 458 | Augustino | Latin | From Augustus meaning magic majestic, dignity, or venerable. | M | |
| 459 | Augusto | Latin | From Augustus meaning magic majestic, dignity, or venerable. | M | |
| 460 | Augustus | Latin | Meaning venerable or majestic, this title was first bestowed on Roman emperor Octavian in 27 BC. | M | |