Kayvien is a rare given name with unknown origins and no widely agreed-upon meaning, often mistakenly linked to Celtic or Welsh languages due to its similar-sounding names. It may be a variant spelling of Caiden, derived from the Irish Gaelic Caoidheán. Despite its mysteries, Kayvien has gained popularity in recent years for its uniqueness and lack of historical baggage, appealing to parents seeking distinctive and personally meaningful names.