Slender, little battler, or celebrated
Kayen is a modern name with multiple possible roots. It is often considered a variation of the Gaelic name Kane, meaning 'slender' or 'battler,' or a phonetic variation of the Arabic name Kayan, meaning 'existence' or 'essence.' In some contexts, it is also linked to the name Kayin, meaning 'celebrated child.'
Fewer than 5 boys were named Kayen in 2025.
US births per 5-year period, 1990–present (SSA data).