| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 401 | Arthurine | English | Feminine form of Arthur: From the Roman clan name Artorius, meaning noble, courageous. | F | |
| 402 | Artie | English | Diminutive of Arthur: From the Roman clan name Artorius, meaning noble, courageous. Famous bearer: Legendary sixth century King Arthur of Britain and his Round Table of knights. This legend dates to the early 9th century. | M | |
| 403 | Arty | English | Diminutive of Arthur: From the Roman clan name Artorius, meaning noble, courageous. Famous bearer: Legendary sixth century King Arthur of Britain and his Round Table of knights. This legend dates to the early 9th century. | M | |
| 404 | Arundel | English | From the eagle's dell. | M | |
| 405 | Arvie | English | The people's friend. | M | |
| 406 | Arvin | English | The people's friend. | M | |
| 407 | Arvis | English | The people's friend. | M | |
| 408 | Arvon | English | The people's friend. | M | |
| 409 | Arwin | English | The people's friend. | M | |
| 410 | Arwood | English | From the fir forest. | M | |
| 411 | Arwyn | English | The people's friend. | M | |
| 412 | Ascot | English | Lives at the east cottage. | M | |
| 413 | Ascott | English | Lives at the east cottage. | M | |
| 414 | Ash | English | Ash tree. | M | |
| 415 | Ashbey | English | Variant of Ashby: Ash tree farm. | M | |
| 416 | Ashbie | English | Variant of Ashby: Ash tree farm. | M | |
| 417 | Ashburn | English | Lives near the ash tree brook. | M | |
| 418 | Ashby | English | From the ash tree farm. | M | |
| 419 | Ashenford | English | Variant of Ashford: River ford near ash trees. | M | |
| 420 | Ashford | English | Lives by the ash tree ford. | M | |