Combination of Tia and Sandra
A modern American creation likely formed by blending the prefix 'Ti-' or the name Tia with the suffix '-andra' from Sandra. It carries the combined heritage of Tia, meaning 'aunt' in Spanish or 'princess' in Greek, and Sandra, meaning 'defender of man'.
Less common today
Tiandra isn't in the latest US Top 1000. It last peaked at #3,127 in 1995.
US births per 5-year period, 1990βpresent (SSA data).