Noble, graceful, or light
Allyana is a modern American elaboration likely combining the Germanic root for 'noble' (found in Alice or Adelaide) with the popular 'ana' suffix. It may also be interpreted as a variant of Eliana, meaning 'my God has answered,' or Aliana, which is associated with light.
Less common today
Allyana isn't in the latest US Top 1000. It last peaked at #3,542 in 2011.
US births per 5-year period, 1990βpresent (SSA data).