Crown or garland
A rare spelling variant of Stephanie, which is the feminine form of Stephen. It is derived from the Greek name Stephanos, referring to a ceremonial crown or wreath awarded to victors.
Less common today
Stepahnie isn't in the latest US Top 1000. It last peaked at #5,426 in 1990.
US births per 5-year period, 1990βpresent (SSA data).