| Name | Meaning | Gender | Origin |
|---|
| Lola | strong woman | Female | Spanish |
| Loretta | Pure
| Female | English |
| Lottie | free man | Female | English |
| Lou | Famous Warrior | Male | English |
| Louise | Renowned fighter. Feminine of Louis.
| Female | |
| Luella | Famous elf
| Female | Spelling |
| Lula | Abundant | Female | English |
| Lulu | Pet form of the names Louise or Louella.
| Female | English |
| Luther | Renowned warrior.
| Male | |
| Lydia | woman from Persia, beauty | Female | Greek |
| Mabel | my fair maid; lovely | Female | English |
| Mae | bitter | Female | English |
| Mamie | Mother | Female | English |
| Marguerite | Pearl | Female | |
| Marion | bitter | Male | |
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |
| Martha | a lady | Female | Aramaic |
| Mary | bitter | Female | Hebrew |
| Matilda | battle-mighty | Female | |
| Mattie | Mighty In Battle | Unisex | German |
| Maude | battle-mighty | Female | English |
| May | bitter | Female | English |
| Michael | who is like God | Male | Hebrew |
| Millicent | after the character in D.C. Simpson's online comic Ozy and Millie | Female | |
| Milton | from the mill town | Male | English |