| Name | Meaning | Gender | Origin |
|---|
| Keith | wood, wind; wood-dweller | Male | Scottish |
| Ken | Male Barbie Doll. | Male | English |
| Kerry | dark, dark-haired | Male | Irish |
| Kevin | handsome | Male | Irish |
| Kim | chief | Male | English |
| Kip | From The Pointed Hill | Unisex | English |
| Kirby | church settlement | Male | Norse |
| Kirk | church | Male | Norse |
| Kit | Nickname for Christopher. Frontiersman Kit Carson.
| Male | English |
| Klaus | Scandinavian and German variation of Nicolas | Male | |
| Knight | Noble, Soldier | Male | English |
| Kobe | tortoise | Male | Swahili |
| Kobi | | Unisex | Hebrew |
| Krystal | Crystal, Ice | Unisex | Greek |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Lance | knight's attendant; land | Male | English |
| Larry | Abbreviation of Lawrence or Laurence often used as an independent name.
| Male | English |
| Lars | after the Metallica drummer Lars Ulrich | Male | Scandinavian |
| Lebron | brown-haired one | Male | |
| Lennox | amid the lems, from the field of elm trees | Male | Scottish |
| Leo | Lion.
| Male | Latin |
| Leonard | lion-hearted | Male | |
| Leonardo | Lion-bold. Leonardo da Vinci is considered by many to be the most brilliant and creative men who ever lived.
| Male | Italian |
| Leroy | The king.
| Male | |
| Lester | Fortified place.
| Male | English |