Lennin is a distinctive boys' name in United States, ranking #10444 in 2007 with 7 recorded births. The name reached its all-time peak in 2016 with 14 births ranking #6214. Since 1996, the popularity has increased by 16.7%. In 2007, approximately 1 in every 296,462 boys born was named Lennin. RISING Recent data shows the name is currently rising.