68%RatingSave Gender Feminine Usage English (Modern) Pronounced Pron. KAY-lin [key·IPA] Meaning & HistoryExpand Links Variant of Kaylyn. Related NamesFamily Tree·Details VariantsCailyn, Kailyn, Kalyn, Kaylen, Kaylin, Kaylyn, Kaylynn, Cailin PopularityDetails Last ranked #947 in 2018 United States People think this name isRate·Details modern youthful common natural delicate refined strange comedic Categories currently out of the US top 1000, ends in -lyn, modern English