Letty is a distinctive girls' name in United States, ranking #6451 in 2009 with 21 recorded births. The name reached its all-time peak in 2016 with 163 births ranking #1423. Since 1996, the popularity has increased by 133.3%. In 2009, approximately 1 in every 87,470 girls born was named Letty. STABLE Recent data shows the name is currently stable.