| Name | Meaning | Gender | Origin |
|---|
| Lore | Flower
| Female | |
| Lorelei | from the Rhine River | Female | |
| Lotti | | Female | |
| Lou | Famous Warrior | Male | English |
| Louise | Renowned fighter. Feminine of Louis.
| Female | |
| Ludwig | Famous fighter
| Male | |
| Luis | Famous fighter
| Male | |
| Lulu | Pet form of the names Louise or Louella.
| Female | English |
| Lump | | Male | |
| Luther | Renowned warrior.
| Male | |
| Madison | son of a mighty warrior; son of Maud | Female | English |
| Magda | high tower one who is elevated | Female | |
| Magnilde | Strong battle maiden
| Female | |
| Maja | Splendid | Female | Arabic |
| Malene | Magnificent
| Female | |
| Mallory | army counseler, without good fortune | Female | |
| Mann | Hero | Unisex | English |
| Marcus | warlike | Male | Latin |
| Marelda | Famous Battle Maid | Unisex | German |
| Margo | Pearl | Female | English |
| Marlene | child of light, bitter | Female | |
| Martina | Warlike | Female | Latin |
| Mathilda | battle maiden, strength | Female | English |
| Mathilde | Mighty In Battle | Female | French |
| Matilda | battle-mighty | Female | |