| Name | Meaning | Gender | Origin |
|---|
| Jackson | Son of Jack | Male | English |
| Jakarta | | Female | Hebrew |
| Jamaica | Isle with many springs | Female | Place-name |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Java | Brewed coffee | Female | Anglicization |
| Jericho | Place In Israel | Male | Hebrew |
| Jersey | From A Section Of England | Male | English |
| Jordan | The descending river, to flow | Male | Hebrew |
| Juno | queen of the heavens | Female | Latin |
| Kenya | Animal Horn | Female | Hebrew |
| Kimberly | Cyneburga's Royal Forest, Meadow | Female | 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 |
| Kobe | tortoise | Male | Swahili |
| Kush | son of Rama | Unisex | |
| Larissa | name of a city, mythical woman; cheerful one | Female | Ltin |
| Leon | lion | Male | Greek |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| Lisbon | | Unisex | Hebrew |
| Logan | little hollow | Male | Scottish |
| London | fierce ruler of the world | Female | English |
| Lorraine | From Lorraine
| Female | |
| Louisiana | | Female | Hebrew |
| Lourdes | Reference to the Virgin Mary
| Female | Basque |