Fair, white, or ancient
Kienna is a modern variation of the Irish name Kianna or Quiana. It is often associated with the Gaelic word 'cian', meaning ancient or enduring, or seen as a blend of Keira and Sienna.
Less common today
Kienna isn't in the latest US Top 1000. It last peaked at #8,977 in 1997.
US births per 5-year period, 1990βpresent (SSA data).