| Name | Meaning | Gender | Origin |
|---|
| Lindsay | pool island; linden island | Female | English |
| Link | English, town by the pool | Male | Word |
| Linus | flaxen-haired | Male | Greek |
| Linux | | Unisex | Hebrew |
| Lionel | Cousin of Lancelot
| Male | Latin |
| Lisa | Devoted to God
| Female | English |
| Liz | Hebrew, pledged to God | Female | English |
| Lizzie | From Elizabeth - Consecrated to God | Female | English |
| Lloyd | gray | Male | Welsh |
| Logan | little hollow | Male | Scottish |
| Loki | To Break | Male | Norse |
| Lolita | Spanish, lady of sorrows | Female | Spanish |
| Loretta | Pure
| Female | English |
| Lou | Famous Warrior | Male | English |
| Louis | famed warrior | Male | |
| Louise | Renowned fighter. Feminine of Louis.
| Female | |
| Lucas | Form of Luke light: illumination.
| Male | Latin |
| Luigi | Famous fighter
| Male | Italian |
| Luke | Light | Male | Greek |
| Mabel | my fair maid; lovely | Female | English |
| Mac | Son of
| Male | Scottish |
| Macbeth | Son of Beth
| Male | |
| Magneto | Device that produces electricity. | Unisex | |
| Mal | Chief
| Male | |
| Margaret | after Margaret Thatcher | Female | Greek |