Letty is a distinctive girls' name in United States, ranking #4554 in 2010 with 32 recorded births. This places Letty in the top 23% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2016 with 163 births ranking #1423. Since 1996, the popularity has increased by 255.6%. In 2010, approximately 1 in every 55,541 girls born was named Letty. STABLE Recent data shows the name is currently stable.