Gennaro is a distinctive boys' name in United States, ranking #3887 in 2001 with 21 recorded births. The name reached its all-time peak in 2022 with 39 births ranking #3116. Since 1996, the popularity has increased by 16.7%. In 2001, approximately 1 in every 92,516 boys born was named Gennaro. FALLING Recent data shows the name is currently falling.