| Name | Meaning | Gender | Origin |
|---|
| Cari | Flows Like Water | Female | Turkish |
| Cassie | Purity | Female | Greek |
| Cassy | Abbreviation Of Cassandra. Unheeded Prophetess. In Homer's The Iliad Cassandra's Prediction Of The Fall Of Troy Was Unheeded. | Female | English |
| Cat | Catlike | Male | Scottish |
| Catalina | Pure IZABEL | Female | English |
| Catarina | Pure | Female | Italian |
| Cathy | Form Of The Greek Catherine Meaning Pure. | Female | English |
| Karen | Pure | Female | Danish |
| Kari | Joyful Song | Female | French |
| Kasia | Alert. Vigorous. Modern Variant Of Casey. | Male | English |
| Kat | English Abbreviation Of Katherine. Pure. | Female | English |
| Katarina | | Female | English |
| Kate | English Abbreviation Of Katherine. Pure. | Female | English |
| 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 | English |
| Kathleen | Innocent | Female | Irish |
| Katia | Variant Of Katherine. Pure. | Female | Spanish |
| Katie | Variant Of Katherine. Pure. | Female | English |
| Katina | Pure. | Female | English |
| Katinka | Pure | Female | Hungarian |
| Katrina | Variant Of Katherine. Pure. | Female | English |
| Kit | Nickname For Christopher. Frontiersman Kit Carson. | Male | English |
| Kitty | Variant Of Katherine. Pure. | Female | English |
| Trina | Innocent | Female | Greek |