| Name | Meaning | Gender | Origin |
|---|
| Joaquin | Abbreviation of the Hebrew name Jehoichin meaning Jehovah has established. Joaquin Miller the colorful 19th century poet-adventurer of the American west.
| Male | Spanish |
| Jonah | Dove. In the bible Jonah was on board a ship God caused to sink: sailors traditionally use the name Jonah to personify someone who brings bad luck.
| Male | Hebrew |
| Jose | Jehovah increases | Male | Spanish |
| Josephine | God will increase | Female | |
| Joyce | after James Augustine Aloysius Joyce, Irish writer and poet | Female | Latin |
| Julia | Youthful
| Female | Latin |
| Juno | queen of the heavens | Female | Latin |
| Karen | pure | Female | Danish |
| Kate | Pure | Female | English |
| Katia | pure | Female | Russian |
| Katrina | Greek, pure | Female | |
| Keith | wood, wind; wood-dweller | Male | Scottish |
| Kirk | church | Male | Norse |
| Klaus | Scandinavian and German variation of Nicolas | Male | |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Larry | Abbreviation of Lawrence or Laurence often used as an independent name.
| Male | English |
| Laura | bay laurel | Female | Latin |
| Leander | lion man | Male | Greek |
| Lee | Healer
| Male | English |
| Lenny | brave lion | Male | English |
| Leslie | dweller in the gray castle; small meadow | Female | Scottish |
| Lili | Consecrated To God | Unisex | German |
| Lilith | character in Cheers | Female | Assyrian |
| Lisa | Devoted to God
| Female | English |
| Lorenzo | Form of Lawrence. Lorenzo de' Medici was a patron of Michaelangelo and Da Vinci.
| Male | Italian |