| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 661 | Mac an Bhreatannai | Gaelic | Son of the Briton. | M | |
| 662 | Mac Artuir | Gaelic | Son of Arthur. | M | |
| 663 | Mac Asgaill | Gaelic | Son of Asgaill. | M | |
| 664 | Mac Bheathain | Gaelic | Son of the man who lives by the clear stream. | M | |
| 665 | Mac Bhriain | Gaelic | Son of the strong. | M | |
| 666 | Mac Daraich | Gaelic | Son of the man from the ford by the oak trees. | M | |
| 667 | Mac GhiIle Easpuig | Gaelic | Son of the one who serves the sacred one. | M | |
| 668 | Mac Ghille Aindrei | Gaelic | Son of the one who served the manly one. | M | |
| 669 | Mac Ghille Bhuidhe | Gaelic | Son of the one who serves the blond one. | M | |
| 670 | Mac Ghille Dhuibh | Gaelic | Son of the one who serves the dark man. | M | |
| 671 | Mac Ghille Dhuinn | Gaelic | Son of the one who serves Brown. | M | |
| 672 | Mac Ghille Laider | Gaelic | Son of the one who serves the strong armed one. | M | |
| 673 | Mac Ghille Mhichei | Gaelic | Son of the one who served Saint Michael. | M | |
| 674 | Mac Nair | Gaelic | Son of an heir. | M | |
| 675 | MacAdam | Gaelic | Son of Adam. | M | |
| 676 | MacAdhaimh | Gaelic | Son of Adam. | M | |
| 677 | MacAilean | Gaelic | Son of the handsome man. | M | |
| 678 | MacAladair | Gaelic | Son of Alasdair. | M | |
| 679 | MacAllen | Gaelic | Son of the handsome man. | M | |
| 680 | MacAllister | Gaelic | Son of Alasdair. | M | |