Gracious
Shaine is a variant of Shane, which is the Anglicized form of the Irish name SeΓ‘n. SeΓ‘n itself is the Irish equivalent of John, ultimately derived from the Hebrew name Yochanan. While traditionally masculine, this spelling is occasionally used for girls in the United States.
Less common today
Shaine isn't in the latest US Top 1000. It last peaked at #1,999 in 1990.
American competitive swimmer and World Champion
US births per 5-year period, 1990βpresent (SSA data).