Lennin is a distinctive boys' name in United States, ranking #7265 in 2001 with 9 recorded births. The name reached its all-time peak in 2016 with 14 births ranking #6214. Since 1996, the popularity has increased by 50.0%. In 2001, approximately 1 in every 215,870 boys born was named Lennin. RISING Recent data shows the name is currently rising.