| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 21 | Ailie | Scottish | Diminutive of Ailsa: From Ailsa Craig, a rocky islet in the Scottish Firth of Clyde. Also a Scottish variant of Else, and a diminutive of Ailis or Alison. | F | |
| 22 | Aillig | Scottish | From the stony place. | M | |
| 23 | Ailsa | Scottish | From Ailsa Craig, a rocky islet in the Scottish Firth of Clyde. Also a Scottish variant of Else. | F | |
| 24 | Aindreas | Scottish | Strong. | M | |
| 25 | Akir | Scottish | Anchor. | M | |
| 26 | Akira | Scottish | Anchor. | F | |
| 27 | Alasdair | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 28 | Alastair | Scottish | Defender of man. | M | |
| 29 | Albany | Scottish | Derived from a former name for northern Scotland. | M | |
| 30 | Alec | Scottish | Abbreviation of Alexander 'defender of mankind.'. | M | |
| 31 | Aleck | Scottish | Abbreviation of Alexander 'defender of mankind.'. | M | |
| 32 | Alison | Scottish | Scottish form of Louise: battle famous. Variant of Alice. | F | |
| 33 | Alistair | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 34 | Alistaire | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 35 | Alister | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 36 | Allister | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 37 | Alpin | Scottish | Blond. | M | |
| 38 | Alpina | Scottish | Blond. | F | |
| 39 | Amhuinn | Scottish | From the alder tree river. | M | |
| 40 | Anderson | Scottish | Son of Andrew. | M | |