Combination of Ty and Ann; or variation of Tiana
Tyann is a modern American blended name. It most likely combines the prefix 'Ty' (often from Tyler or Tyson) with the classic name 'Ann', or it serves as a phonetic variation of the name Tiana, which has roots meaning 'princess' or 'follower of Christ'.
US births per 5-year period, 1990–present (SSA data).