| Name | Meaning | Gender | Origin |
|---|
| Isaiah | salvation of the Lord | Male | Hebrew |
| Ivan | Form of John | Male | Russian |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jed | the hand | Male | English |
| Jerome | sacred name | Male | Greek |
| Jesse | wealthy | Male | Hebrew |
| 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 |
| Jonas | Dove. Variant of Hebrew Jonah.
| Male | Greek |
| Julian | Jove's child. Form of Julius and family clan name of several powerful Roman emperors. Biblical Roman centurion Julius saved Paul's life during a hazardous voyage
| Male | English |
| Kit | Nickname for Christopher. Frontiersman Kit Carson.
| Male | English |
| Lane | narrow road | Male | English |
| Leland | from the meadow land | Male | English |
| Lennox | amid the lems, from the field of elm trees | Male | Scottish |
| Lenny | brave lion | Male | English |
| Leo | Lion.
| Male | Latin |
| Levi | United | Male | Hebrew |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| Lloyd | gray | Male | Welsh |
| Louis | famed warrior | Male | |
| Luke | Light | Male | Greek |
| Lyle | island | Male | Scottish |