| Name | Meaning | Gender | Origin |
|---|
| Holly | Holly | Female | English |
| Honey | Honey | Female | English |
| Howard | Sheep herder | Male | English |
| Irving | Green water | Male | English |
| Jack | God is gracious | Male | Hebrew |
| Jagger | Pedlar | Male | English |
| Jake | Supplanted | Male | Hebrew |
| Jesse | Gift | Male | Hebrew |
| Jett | Black gemstone | Male | English |
| Jinx | Magic charm | Female | Latin |
| Kane | A spear | Female | Hebrew |
| Katie | Pure | Female | Greek |
| Keane | Descendant of Cathán | Male | Gaelic |
| Keefe | Handsome | Male | English |
| Keegan | Son of Aodhagáin | Male | Gaelic |
| Keelan | Slender and fair | Unisex | Gaelic |
| Kelly | War | Female | Gaelic |
| Kelvin | From the River Clyde | Male | English |
| Kemp | Battler, fighter, warrior | Male | English |
| Kendall | Valley of the River Kent | Female | Gaelic |
| Kenley | Wolf head | Male | Gaelic |
| Kent | Uncertain, perhaps coastal region | Male | English |
| Kermit | Son of the one without envy | Male | Gaelic |
| Kerry | Country of the children of Ciar | Female | Gaelic |
| Kevin | Beautiful at birth | Male | Gaelic |
| Kimball | Bold Kin. | Unisex | English |
| Kimberley | Variable prefix + forest clearing | Unisex | English |
| King | King's forest clearing | Male | English |
| Kishi | Beach, seashore | Unisex | Japanese |
| Ladd | Attendant | Male | English |