Lennin is a distinctive boys' name in United States, ranking #7823 in 2015 with 10 recorded births. The name reached its all-time peak in 2016 with 14 births ranking #6214. Since 1996, the popularity has increased by 66.7%. In 2015, approximately 1 in every 191,626 boys born was named Lennin. RISING Recent data shows the name is currently rising.