| Name | Meaning | Gender | Origin |
|---|
| Jennis | Variation Of Jenny Which Is A Diminutive Of Jane And Jennifer. | Unisex | American English |
| Jesse | Gift | Male | Hebrew |
| Jett | Black gemstone | Male | English |
| Jilly | Down-bearded youth | Unisex | Latin |
| Jinx | Magic charm | Female | Latin |
| Jock | Supplanter | Male | English |
| Jose | May God Give Increase. | Male | English |
| Julie | Down-bearded youth | Female | Latin |
| Justina | Righteous | Female | Latin |
| Kane | A spear | Female | Hebrew |
| Katie | Pure | Female | Greek |
| Kayla | Who is like God? | Female | Hebrew |
| Keane | Descendant of Cathán | Male | Gaelic |
| Keegan | Son of Aodhagáin | Male | Gaelic |
| Keilah | Lively: Aggressive. Variant Of Kelly. | Female | English |
| Kent | Uncertain, perhaps coastal region | Male | English |
| Kiki | Pet form of names in K | Male | English |
| Killer | | Unisex | Hebrew |
| Kirby | Church settlement | Female | Norse |
| Kishi | Beach, seashore | Unisex | Japanese |
| Klaus | Victory of the people | Male | Greek |
| Knox | Round-topped hill | Male | English |
| Kyra | Lady | Female | Greek |
| Ladd | Attendant | Male | English |
| Laddie | Young Attendant | Male | English |
| Lady | Lady | Unisex | English |
| Lancelot | Knight Of Arthur And Lover Of Guinevere | Male | French |
| Leah | Weary | Female | Hebrew |
| Lennon | Descendant of Leannán or Lonán | Male | Gaelic |
| Liam | Will, desire and helmet, protection | Male | Germanic |