| Name | Meaning | Gender | Origin |
|---|
| Johnny | the Lord is gracious | Male | English |
| Jolly | Full of good humor and high spirits. | Unisex | |
| 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 |
| Josey | God Will Increase | Unisex | English |
| Josh | God Saves | Unisex | English |
| Justin | just, true | Male | Latin |
| Keenan | Ancient
| Male | Irish |
| Ken | Male Barbie Doll. | Male | English |
| Kimmy | Cyneburga's Royal Forest, Meadow | Unisex | English |
| Kirby | church settlement | Male | Norse |
| Kit | Nickname for Christopher. Frontiersman Kit Carson.
| Male | English |
| Lance | knight's attendant; land | Male | English |
| Lane | narrow road | Male | English |
| Larry | Abbreviation of Lawrence or Laurence often used as an independent name.
| Male | English |
| Lawson | son of Lawrence | Male | English |
| Lee | Healer
| Male | English |
| Leland | from the meadow land | Male | English |
| Leroy | The king.
| Male | |
| Levi | United | Male | Hebrew |
| Lloyd | gray | Male | Welsh |
| Lobo | Wolf | Unisex | Italian |
| Lowell | Beloved | Male | |
| Lucas | Form of Luke light: illumination.
| Male | Latin |
| Lucky | Having good luck. | Male | Word |
| Luke | Light | Male | Greek |