| Gender | Baby Name | Meaning |
|---|---|---|
 | Kathleen | Pure |
| Kathryn | Pure |
| Kathy | Pure |
| Katia | Pure |
| Katie | Pure |
| Katina | Pure |
| Katinka | Pure |
| Katlyn | Pure |
| Katrice | Noble, pure |
| Katrina | Pure |
 | Katsu | Victorious |
| Katsuo | Hero, victor |
| Katsuro | Victory |
| Katy | Pure |
| Kay | Rejoice |
| Kayla | Crown of laurels |
| Kaylee | Crown of laurel |
| Kayley | Crown of laurel |
| Kazuhito | Peace, harmony |
| Kazuki | Peaceful tree |
