Lennin is a distinctive boys' name in United States, ranking #9379 in 2025 with 8 recorded births. The name reached its all-time peak in 2016 with 14 births ranking #6214. Since 1996, the popularity has increased by 33.3%. In 2025, approximately 1 in every 213,510 boys born was named Lennin. RISING Recent data shows the name is currently rising.