The name Bryanna is a girl's name . Bryanna and is often added to user-created lists like Alternate Spellings and discussed in our forums with posts like "Heaven Hell or Purgatory- Girls".
From the experts:
A confusing looking name—is it BRY-anna or BREE-anna? There are other feminine variants of Bryan/Brian which look less made up, such as Brianna and Breanna. We recommend looking into those choices to avoid pronunciation issues.