Kysen is a modern American coinage that belongs to the Kyson, Kason and Kasen family; it has no traditional meaning and is built from the fashionable first syllable Ky- and the surname-style ending -sen, which is Scandinavian for "son". The name is valued for sounding both new and familiar. Kysen rose from number 7880 in 2000 to a peak of number 1317 in 2020 and ranks number 1557 in 2025.