Sierrah is a distinctive girls' name in United States, ranking #6529 in 2011 with 20 recorded births. The name reached its all-time peak in 2001 with 81 births ranking #2073. Since 1996, the popularity has decreased by 73.0%. In 2011, approximately 1 in every 87,940 girls born was named Sierrah. STABLE Recent data shows the name is currently stable.