Gracious
Giahna is a modern phonetic spelling 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 adds a unique visual flair to a traditional root.
Less common today
Giahna isn't in the latest US Top 1000. It last peaked at #10,902 in 2021.
US births per 5-year period, 1990βpresent (SSA data).