Tiannah is a distinctive girls' name in United States, ranking #5087 in 2007 with 29 recorded births. The name reached its all-time peak in 2007 with 29 births ranking #5087. Since 1996, the popularity has increased by 141.7%. In 2007, approximately 1 in every 66,291 girls born was named Tiannah. FALLING Recent data shows the name is currently falling.