| # | Name | Origin | Meaning | Gender | Save |
|---|---|---|---|---|---|
| 4941 | Morton | English | From the farm near the moor. | M | |
| 4942 | Moss | English | Medieval form of Moses 'saved from the water.'. | M | |
| 4943 | Moulton | English | From the mule farm. | M | |
| 4944 | Mychaela | English | Feminine form of Michael, meaning gift from God. | F | |
| 4945 | Myla | English | Merciful. Feminine of Myles. | F | |
| 4946 | Myleen | English | Merciful. Feminine of Myles. | F | |
| 4947 | Myles | English | Merciful. | M | |
| 4948 | Mylnburne | English | From the mill stream. | M | |
| 4949 | Mylnric | English | From the powerful mill. | M | |
| 4950 | Mylo | English | Merciful. | M | |
| 4951 | Myra | English | Name invented by an Elizabethan writer (Fulke Greville, Lord Brooke) for a love poem. | F | |
| 4952 | Myrtilla | English | Variant of Myrtle: A flowering shrub. | F | |
| 4953 | Myrtle | English | A flowering shrub. | F | |
| 4954 | Mystee | English | Misty. | F | |
| 4955 | Mysti | English | Misty. | F | |
| 4956 | Nan | English | Diminutive of Anne: Favour; grace. | F | |
| 4957 | Nancey | English | Variant of Anne, meaning favor; grace. | F | |
| 4958 | Nanci | English | Variant of Anne, meaning favor; grace. | F | |
| 4959 | Nancie | English | Variant of Anne, meaning favor; grace. | F | |
| 4960 | Nancie | English | Variant of Anne 'favor; grace.'. | M | |