| # | Name | Origin | Meaning | Gender | Save |
|---|---|---|---|---|---|
| 1 | Mabon | ArthurianLegend | A knight. | M | |
| 2 | Mabonaqain | ArthurianLegend | A knight. | M | |
| 3 | Mabuz | ArthurianLegend | Ruler of Death Castle. | M | |
| 4 | Mador | ArthurianLegend | Accuser of Guinevere. | M | |
| 5 | Maheloas | ArthurianLegend | Lord of the Isle of Glass. | M | |
| 6 | Maldue | ArthurianLegend | A wizard. | M | |
| 7 | Mariadok | ArthurianLegend | King Mark's servant. | M | |
| 8 | Mark | ArthurianLegend | Tristan's uncIe. | M | |
| 9 | Marrok | ArthurianLegend | A knight thought to be a werewolf. | M | |
| 10 | Meleagant | ArthurianLegend | Kidnapped Guinevere. | M | |
| 11 | Melechan | ArthurianLegend | Mordred's son. | M | |
| 12 | Meliadus | ArthurianLegend | Tristan's father. | M | |
| 13 | Meliodas | ArthurianLegend | Tristan's father. | M | |
| 14 | Melwas | ArthurianLegend | Name of a king. | M | |
| 15 | Melyon | ArthurianLegend | Son of Mordred. | M | |
| 16 | Merlin | ArthurianLegend | Sea fortress. In Arthurian mythology the wizard Merlin was King Arthur's mentor. | M | |
| 17 | Merlyn | ArthurianLegend | Sea fortress. In Arthurian mythology the wizard Merlin was King Arthur's mentor. | M | |
| 18 | Modred | ArthurianLegend | Son/nephew of Arthur. | M | |
| 19 | Mordrain | ArthurianLegend | Name of a king. | M | |
| 20 | Mordred | ArthurianLegend | Son/nephew of Arthur. | M | |