Land of the Indians
A place-name variant derived from the American state of Indiana, which itself means 'Land of the Indians.' The double-n spelling is a modern elaboration that aligns it with names like Anna or Brianna.
Less common today
Indianna isn't in the latest US Top 1000. It last peaked at #11,486 in 2015.
Australian actress known for Home and Away and H2O: Just Add Water
US births per 5-year period, 1990βpresent (SSA data).