Gracious
Shavona is a modern American elaboration of Siobhan, the Irish form of Joan. It combines the traditional Gaelic roots with phonetic styling popular in the late 20th century. Like its root names, it ultimately derives from the Hebrew name Yochanan.
Less common today
Shavona isn't in the latest US Top 1000. It last peaked at #5,127 in 1993.
US births per 5-year period, 1990βpresent (SSA data).