| Name | Meaning | Gender | Origin |
|---|
| Jake | Supplanted | Male | Hebrew |
| James | Supplanter | Male | Hebrew |
| Jan | God is gracious | Male | Hebrew |
| Jasper | Treasurer | Male | Persian |
| Jaws | Bones that form the mouth. A dangerous situation - "The Jaws of Death" | Unisex | English |
| Jazz | The romantic music | Unisex | English |
| Jenkins | God is gracious | Male | Hebrew |
| Jennis | Variation Of Jenny Which Is A Diminutive Of Jane And Jennifer. | Unisex | American English |
| Jerry | Spear ruler | Male | Germanic |
| Jet | Black gemstone | Unisex | English |
| Jilly | Down-bearded youth | Unisex | Latin |
| Jojo | Monday born | Unisex | African |
| Jose | May God Give Increase. | Male | English |
| Joshua | God rescues | Male | Hebrew |
| Juan | God is gracious | Male | Hebrew |
| Junior | Younger | Male | English |
| Kaiser | Emperor: Variant Of Caesar. | Male | Latin |
| Kato | [Pure] | Male | Greek |
| Keaton | Kite town | Male | English |
| Kewpie | | Unisex | Hebrew |
| Keyon | "Guiding, Leading. Alternate Spellings: Kieon, Key." | Male | American English |
| Kiki | Pet form of names in K | Male | English |
| Kimberley | Variable prefix + forest clearing | Unisex | English |
| Kipp | A pointed hill | Male | English |
| Kirk | Church | Male | Norse |
| Knox | Round-topped hill | Male | English |
| Laddie | Young Attendant | Male | English |
| Lady | Lady | Unisex | English |
| Lakota | Friend | Unisex | English |
| Lamar | Of the Sea | Male | Latin |