| Kaarina | | | Gender: | Female | | Origin: | Finnish |
| | | | | Finnish form of Katherine, meaning "pure". |
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| Kacey | | | Gender: | Female | | Origin: | English |
| | | | | English variant of Irish Casey, meaning "vigilant, wakeful". |
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| Kacie | | | Gender: | Female | | Origin: | English |
| | | | | Variant of English Kacey, meaning "vigilant, wakeful". |
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| Kadence | | | Gender: | Unisex | | Origin: | English |
| | | | | Feminine variant of English unisex Cadence, meaning "flow of rhythm; falling". |
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| Kadri | | | Gender: | Female | | Origin: | English |
| | | | | Estonian form of English Katherine, meaning "pure". |
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