| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 21 | Alistair | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 22 | Alistaire | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 23 | Alister | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 24 | Allister | Scottish | Variant of Alexander 'defender of mankind.'. | M | |
| 25 | Alpin | Scottish | Blond. | M | |
| 26 | Amhuinn | Scottish | From the alder tree river. | M | |
| 27 | Anderson | Scottish | Son of Andrew. | M | |
| 28 | Andre' | Scottish | Variant of Andrew: Manly. From the Greek Andrew. Has long been a popular Scottish name, because St. Andrew is the Patron Saint of Scotland after whom the town of St Andrews was named. | M | |
| 29 | Andreas | Scottish | Variant of Andrew: Manly. From the Greek Andrew. Has long been a popular Scottish name, because St. Andrew is the Patron Saint of Scotland after whom the town of St Andrews was named. | M | |
| 30 | Andrew | Scottish | Manly. From the Greek Andrew. Has long been a popular Scottish name, because St. Andrew is the Patron Saint of Scotland after whom the town of St Andrews was named. | M | |
| 31 | Andy | Scottish | Diminutive of Andrew: Manly. From the Greek Andrew. Has long been a popular Scottish name, because St. Andrew is the Patron Saint of Scotland after whom the town of St Andrews was named. | M | |
| 32 | Angus | Scottish | Unnaturally strong; singular; only choice. Scots Celtic god Angus Og helped his people with his wisdom and intelligence. The Aberdeen Angus is a Scottish breed of black cattle. | M | |
| 33 | Aoidh | Scottish | Spirited. | M | |
| 34 | Aonghus | Scottish | Unnaturally strong. | M | |
| 35 | Archibald | Scottish | True and bold. Also 'bald'. Introduced from England and Germany during the Norman conquest, the Scottish interpreted the 'bald' to refer to the shaven head of a monk. | M | |
| 36 | Archie | Scottish | Diminutive of Archibald: True and bold. Also 'bald'. Introduced from England and Germany during the Norman conquest, the Scottish interpreted the 'bald' to refer to the shaven head of a monk. | M | |
| 37 | Archy | Scottish | Diminutive of Archibald: True and bold. Also 'bald'. Introduced from England and Germany during the Norman conquest, the Scottish interpreted the 'bald' to refer to the shaven head of a monk. | M | |
| 38 | Argyle | Scottish | From the land of the Gauls. | M | |
| 39 | Armstrang | Scottish | Strong. | M | |
| 40 | Armstrong | Scottish | Strong. | M | |