Follower of Christ or fairy queen
Tiahna is a modern phonetic variant of Tiana. It is often considered a diminutive of Tatiana, a Roman name derived from the Sabine king Titus Tatius, or a shortened form of Christiana.
Less common today
Tiahna isn't in the latest US Top 1000. It last peaked at #4,167 in 1996.
British fashion model
US births per 5-year period, 1990βpresent (SSA data).