Len is a distinctive boys' name in United States, ranking #7543 in 2022 with 11 recorded births. This places Len in the bottom 47% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 15 births ranking #5890. Since 1996, the popularity has decreased by 15.4%. In 2022, approximately 1 in every 158,579 boys born was named Len. FALLING Recent data shows the name is currently falling.