Letty is a distinctive girls' name in United States, ranking #1671 in 2015 with 128 recorded births. The name reached its all-time peak in 2016 with 163 births ranking #1423. Since 1996, the popularity has increased by 1,322.2%. In 2015, approximately 1 in every 13,943 girls born was named Letty. STABLE Recent data shows the name is currently stable.