| Name | Meaning | Gender | Origin |
|---|
| Lon | Fierce | Male | English |
| London | From London | Male | English |
| Lorne | Form Of Lawrence. | Male | English |
| Lowell | Wolf | Male | English |
| Loyal | Faithful to a person, place or idea | Unisex | English |
| Lucky | Fortunate | Unisex | English |
| Ludlow | From Ludlow | Male | English |
| Lyman | Clearing, meadow | Male | English |
| Lyndon | Lime tree hill | Male | English |
| Lyndsey | Lincoln island | Unisex | English |
| Lynne | A Cascade | Unisex | English |
| Lyric | Lyric | Unisex | English |
| Macy | Place of Maccius | Male | English |
| Maddie | Pet form of Mad- names | Unisex | English |
| Madison | Son of Maud | Unisex | English |
| Manley | Common clearing | Male | English |
| Manson | Son of Magnus | Unisex | English |
| Marden | Boundary hill | Male | English |
| Marlon | Little Falcon | Male | English |
| Marlow | Drained lake | Male | English |
| Marquez | Respelling of Marquis | Male | English |
| Marsden | Boundary valley | Male | English |
| Maryjane | Combination of Mary and Jane | Unisex | English |
| Mather | Mower | Male | English |
| Maverick | Dissenter | Unisex | English |
| Mavis | Song thrush | Male | English |
| Maxi | Pet form of names starting with Max | Unisex | English |
| Maxie | Pet form of names starting with Max | Unisex | English |
| Maxwell | Maccus's stream | Male | English |
| Mel | Uncertain, possibly bad town | Unisex | English |