Combination of Tyra and Anna
A modern American blend likely combining the name Tyra, which has Norse roots relating to the god Tyr, with the classic Hebrew name Anna, meaning grace. It follows the 21st-century trend of creating melodic, multi-syllabic names by adding popular suffixes like -anna to established prefixes.
Less common today
Tyrianna isn't in the latest US Top 1000. It last peaked at #5,881 in 2002.
US births per 5-year period, 1990βpresent (SSA data).