Gracious
Gyanna is a modern phonetic variant of Gianna, which is the Italian diminutive of Giovanna. It ultimately derives from the Hebrew name Yochanan, meaning 'God is gracious.' This specific spelling is rare and offers a contemporary American twist on a traditional European classic.
Less common today
Gyanna isn't in the latest US Top 1000. It last peaked at #7,158 in 2010.
US births per 5-year period, 1990βpresent (SSA data).