| Name | Meaning | Gender | Origin |
|---|
| Kenneth Towler | Had O.W.L. breakdown.
| Male | |
| Kevin | handsome | Male | Irish |
| Killian | church | Male | Irish |
| King | King's field. King is one of several titles occasionally used as given names.
| Male | English |
| Kingston | From the king's village or estate King's field. King is one of several titles occasionally used as given names.
| Male | English |
| Kinski | | Male | Hebrew |
| Kitto | Greek and Latin, bearer of Christ | Male | Cornish |
| Klahan | Brave | Unisex | Thai |
| Klaw | | Male | Hebrew |
| Knuckles | | Male | Hebrew |
| Kobe | tortoise | Male | Swahili |
| Kody | Assistant, a cushion, possessions.
| Male | Spelling |
| Kramer | | Male | |
| Kristopher | Greek and Latin, bearer of Christ | Male | Greek |
| Kyrk | Church
| Male | |
| Kyrksen | Church.
| Male | |
| Lachie | The boy from the Lochs. Warrior.
| Male | |
| Laine | From the long meadow
| Male | |
| Lama | | Male | |
| Laser | | Male | Hebrew |
| Lee | Healer
| Male | English |
| Leo | Lion.
| Male | Latin |
| Leon | lion | Male | Greek |
| Leonard | lion-hearted | Male | |
| Lewis And Clark | | Male | Hebrew |