75%RatingSave Gender Feminine Usage English (Rare) Pronounced Pron. KAY-lin [key·IPA] Meaning & HistoryExpand Links Variant of Kaylyn. It also coincides with the Irish word cailín meaning "girl". Related NamesFamily Tree·Details VariantsCailyn, Kaelyn, Kailyn, Kalyn, Kaylen, Kaylin, Kaylyn, Kaylynn People think this name isRate·Details youthful natural wholesome delicate refined strange Categories ends in -lin, rare English, variants, women, youth