| Name | Meaning | Gender | Origin |
|---|
| Lloyd | Grey | Male | Welsh |
| Lobo | Wolf | Male | Spanish |
| Lowell | Wolf | Male | English |
| Loyal | Faithful to a person, place or idea | Unisex | English |
| Lucas | Man from Lucania | Male | Greek |
| Lucky | Fortunate | Unisex | English |
| Luke | Man from Lucania | Male | Greek |
| Lyle | Island | Male | French |
| Lyndon | Lime tree hill | Male | English |
| Mackenzie | Son of Coinneach | Male | Gaelic |
| Maddock | Good | Male | Welsh |
| Maddox | Good | Unisex | Welsh |
| Madison | Son of Maud | Unisex | English |
| Malcolm | Columba's servant | Male | Gaelic |
| Marshall | Horse servant | Male | Germanic |
| Maryjane | Combination of Mary and Jane | Unisex | English |
| Matt | Gift of God | Male | Hebrew |
| Maverick | Dissenter | Unisex | English |
| Merrick | Moor | Male | Welsh |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Milton | Settlement by the mill | Male | English |
| Montana | Mountainous | Unisex | Latin |
| Monty | Gomeric's hill | Male | French |
| Morris | Moor | Male | Latin |
| Morton | Settlement by or on a moor | Male | English |
| Murdock | Sea | Male | Gaelic |
| Nash | At the ash tree | Male | English |
| Ned | Wealth protector | Unisex | English |
| Nelson | Son of Neal | Male | English |