| McDaniel | Unisex | Scottish Names |
| McDonald | Unisex | Scottish Names |
| McDowell | Unisex | Scottish Names |
| McGuire | Unisex | Scottish Names |
| McIntyre | Man | Scottish Names |
| McKee | Unisex | Scottish Names |
| McKenna | Unisex | Scottish Names |
| McKenzie | Man | Scottish Names |
| McKinney | Unisex | Scottish Names |
| Melvina | Woman | Scottish Names |
| Meriel | Woman | Scottish Names |
| Mirren | Woman | Scottish Names |
| Moira | Woman | Scottish Names |
| Monroe | Unisex | Scottish Names |
| Morag | Woman | Scottish Names |
| Morton | Man | Scottish Names |
| Moyer | Unisex | Scottish Names |