| Name | Meaning | Gender | Origin |
|---|
| Katherine | Pure. Used since third century A.D. Early Latin forms Katerina and Caterina became Katharine and Catherine. French Cateline and English Catlyn came into wider use during medieval period when variants multiplied.
| Female | Greek |
| Khan | An Indian ruler or official | Unisex | |
| Kincaid | | Unisex | Hebrew |
| Kipling | after Rudyard Kipling, writer | Unisex | |
| Lady | A female title of nobility. | Female | |
| Lafayette | Hound Dog from the AristoCats
| Male | |
| Lennon | small cloak or cape | Male | Irish |
| Leonard | lion-hearted | Male | |
| Lilith | character in Cheers | Female | Assyrian |
| Lindsay | pool island; linden island | Female | English |
| Lois | Battle Maiden | Female | Greek |
| Lord | A male title of nobility. | Male | English |
| Louis | famed warrior | Male | |
| Louise | Renowned fighter. Feminine of Louis.
| Female | |
| Lovell | Little Wolf | Unisex | English |
| Luther | Renowned warrior.
| Male | |
| MacKenzie | Child of the wise leader
| Female | Scottish |
| Madeline | woman from Magdala, one who is elevated, a high tower | Female | English |
| Magnus | One who is great.
| Male | Latin |
| Malik | Arabic for master | Male | Arabic |
| Manners | | Unisex | Hebrew |
| Mansfield | From The Field By The Small River | Unisex | English |
| Margaret | after Margaret Thatcher | Female | Greek |
| Margot | Variant of Margaret | Female | |
| Mia | Mine | Female | Scandinavian |