Starting with letter M
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 61 | MacAlister | Scottish | Son of Alasdair. | M | |
| 62 | MacAllen | Gaelic | Son of the handsome man. | M | |
| 63 | MacAllister | Gaelic | Son of Alasdair. | M | |
| 64 | MacAlpin | Scottish | Son of Alpine. | M | |
| 65 | MacAlpine | Scottish | Son of Alpine. | M | |
| 66 | MacAndrew | Scottish | Son of Andrew. | M | |
| 67 | Macario | Spanish | Happy. | M | |
| 68 | Macartan | Irish | Son of Artan. | M | |
| 69 | MacArthur | Gaelic | Son of Arthur. | M | |
| 70 | MacArthur | Scottish | Son of Arthur. | M | |
| 71 | MacArtuir | Gaelic | Son of Arthur. | M | |
| 72 | MacAulay | Scottish | Son of Olaf. | M | |
| 73 | MacAuliffe | Irish | Son of Olaf. | M | |
| 74 | MacAuslan | Scottish | Son of Absalon. | M | |
| 75 | MacBain | Scottish | Son of Beathan. | M | |
| 76 | MacBean | Scottish | Son of Beathan. | M | |
| 77 | MacBeth | Scottish | Son of Beth. | M | |
| 78 | Macbeth | Shakespearean | 'The Tragedy of Macbeth' Thane of Glamis and Cawdor, a general in the King's army, who murders King Duncan and takes his crown. | M | |
| 79 | MacBride | Irish | Son of Bridget 'Bride'. | M | |
| 80 | MacCallum | Scottish | Son of Callum. | M | |