Follower of Christ
Crystin is a modern phonetic variant of Kristin or Christine. It ultimately derives from the Greek name Christos, which was used to translate the Hebrew word for 'Messiah' or 'Anointed One'.
Less common today
Crystin isn't in the latest US Top 1000. It last peaked at #7,103 in 1997.
US births per 5-year period, 1990βpresent (SSA data).