| Name | Meaning | Gender | Origin |
|---|
| Judy | Hebrew, He will be praised, woman from Judea | Female | English |
| Julia | Youthful
| Female | Latin |
| 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 |
| Julie | Youthful: Jove's child. A feminine of Julian.
| Female | |
| Julio | Latin, youthful, downy-bearded | Male | Spanish |
| June | 6Th Month | Female | English |
| Justin | just, true | Male | Latin |
| Karen | pure | Female | Danish |
| Katherine | Pure. Used since third century A.D. Early Latin forms Katerina and Caterina became Katharine and Catherine. French Cateline and English Catlyn came into wider use during medieval period when variants multiplied.
| Female | Greek |
| Kathleen | Innocent
| Female | Anglicized |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Katrina | Greek, pure | Female | |
| Keith | wood, wind; wood-dweller | Male | Scottish |
| Kelly | Lively: aggressive.
| Female | Irish |
| Ken | Male Barbie Doll. | Male | English |
| Kevin | handsome | Male | Irish |
| Kim | chief | Male | English |
| Kimberly | Cyneburga's Royal Forest, Meadow | Female | English |
| Kirk | church | Male | Norse |
| Kristen | Anointed, Follower Of Christ | Female | Danish |
| Kristin | Anointed, Follower Of Christ | Female | German |
| Kyle | A place-name referring to the narrows: a wood or a church.
| Male | Scottish |
| Lance | knight's attendant; land | Male | English |
| Larry | Abbreviation of Lawrence or Laurence often used as an independent name.
| Male | English |
| Laura | bay laurel | Female | Latin |