Tiannah is a distinctive girls' name in United States, ranking #10374 in 2003 with 10 recorded births. The name reached its all-time peak in 2007 with 29 births ranking #5087. Since 1996, the popularity has decreased by 16.7%. In 2003, approximately 1 in every 182,705 girls born was named Tiannah. FALLING Recent data shows the name is currently falling.