Manifestation of God
A rare spelling variant of Tiffany, derived from the Greek name Theophania. Historically, the name was traditionally given to girls born on the feast of the Epiphany, marking the revelation of God to the world.
Less common today
Tiffiney isn't in the latest US Top 1000. It last peaked at #3,859 in 1990.
US births per 5-year period, 1990βpresent (SSA data).