Lennin is a distinctive boys' name in United States, ranking #6372 in 2004 with 12 recorded births. The name reached its all-time peak in 2016 with 14 births ranking #6214. Since 1996, the popularity has increased by 100.0%. In 2004, approximately 1 in every 165,400 boys born was named Lennin. RISING Recent data shows the name is currently rising.