Invented name; likely a variation of Zion or Shiona
Zyonna is a modern American invention, likely created by blending the biblical place name Zion with the popular '-onna' suffix. It may also be interpreted as a phonetic variant of Shiona, a Scottish Gaelic form of Joan, meaning 'God is gracious'.
Less common today
Zyonna isn't in the latest US Top 1000. It last peaked at #3,915 in 2014.
US births per 5-year period, 1990βpresent (SSA data).