Tiannah is a distinctive girls' name in United States, ranking #18877 in 2015 with 5 recorded births. The name reached its all-time peak in 2007 with 29 births ranking #5087. Since 1996, the popularity has decreased by 58.3%. In 2015, approximately 1 in every 356,931 girls born was named Tiannah. FALLING Recent data shows the name is currently falling.