Gracious or God is gracious
Syanna is a modern invented name, likely created as a blend of the prefix 'Sy-' with the classic name Anna. It is often interpreted as a variant of Shianna or Sianna, carrying the traditional meaning of 'gracious' or 'favor' associated with its roots.
Less common today
Syanna isn't in the latest US Top 1000. It last peaked at #5,874 in 2007.
US births per 5-year period, 1990βpresent (SSA data).