| Name | Meaning | Gender | Origin |
|---|
| Jericho | Place In Israel | Male | Hebrew |
| 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 |
| Joseph | God will increase | Male | Hebrew |
| Junior | Youthful person. Used to distinguish son from father where they have the same name | Male | Latin |
| Keanu | cool breeze over the mountains | Male | Hawaiian |
| Kim | chief | Male | English |
| Kipling | after Rudyard Kipling, writer | Unisex | |
| Lachlan | From the land of lakes.
| Male | Scottish |
| Lane | narrow road | Male | English |
| Lazarus | God's help | Male | Greek |
| Leander | lion man | Male | Greek |
| Leland | from the meadow land | Male | English |
| Leon | lion | Male | Greek |
| Leonard | lion-hearted | Male | |
| Leonardo | Lion-bold. Leonardo da Vinci is considered by many to be the most brilliant and creative men who ever lived.
| Male | Italian |
| Leopold | after Leopoldo in the movie Blood and Roses | Male | |
| Lionel | Cousin of Lancelot
| Male | Latin |
| Lorenzo | Form of Lawrence. Lorenzo de' Medici was a patron of Michaelangelo and Da Vinci.
| Male | Italian |
| Lullaby | | Unisex | |
| Magnus | One who is great.
| Male | Latin |
| Malcolm | Royal Blood | Male | Scottish |
| March | Walk Forth | Male | Latin |
| Mark | warlike | Male | Latin |
| Maxwell | Capable
| Male | Scottish |
| Miles | of smiles | Male | Latin |