Lennin is a distinctive boys' name in United States, ranking #7361 in 2017 with 11 recorded births. The name reached its all-time peak in 2016 with 14 births ranking #6214. Since 1996, the popularity has increased by 83.3%. In 2017, approximately 1 in every 168,211 boys born was named Lennin. RISING Recent data shows the name is currently rising.