Starting with letter M
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 81 | MacClennan | Scottish | Son of Finnian's servant. | M | |
| 82 | MacColl | Scottish | Son of Coll. | M | |
| 83 | MacCormack | Irish | Son of Cormac. | M | |
| 84 | Maccus | Celtic | Hammer. | M | |
| 85 | MacDaibhidh | Scottish | David's son. | M | |
| 86 | MacDhuBh | Scottish | Son of the blackman. | M | |
| 87 | MacDomhnall | Scottish | Son of the world's ruler. | M | |
| 88 | MacDonald | Scottish | Son of the world's ruler. | M | |
| 89 | MacDonell | Scottish | Son of the world's ruler. | M | |
| 90 | MacDougal | Scottish | Son of Dougal. | M | |
| 91 | MacDoughall | Scottish | Son of Dougal. | M | |
| 92 | MacDubhgall | Scottish | Son of Dougal. | M | |
| 93 | MacDuff | Scottish | Son of the blackman. | M | |
| 94 | Macduff | Shakespearean | 'The Tragedy of Macbeth' Macduff, Thane of Fife, a nobleman of Scotland who finally kills Macbeth. | M | |
| 95 | Mace | English | A mace was a medieval weapon used by knights. | M | |
| 96 | Macedonia | Biblical | Burning, adoration. | M | |
| 97 | MacElroy | Irish | Son of Elroy. | M | |
| 98 | Macerio | Spanish | Form of Mace which is a medieval weapon used by knights. | M | |
| 99 | MacEwen | Scottish | Son of Ewen. | M | |
| 100 | MacFarlane | Scottish | Son of Farlan. | M | |