Gennaro is a distinctive boys' name in United States, ranking #3135 in 1998 with 25 recorded births. The name reached its all-time peak in 2022 with 39 births ranking #3116. Since 1996, the popularity has increased by 38.9%. In 1998, approximately 1 in every 76,453 boys born was named Gennaro. FALLING Recent data shows the name is currently falling.