Gennaro is a distinctive boys' name in United States, ranking #5586 in 2015 with 16 recorded births. The name reached its all-time peak in 2022 with 39 births ranking #3116. Since 1996, the popularity has decreased by 11.1%. In 2015, approximately 1 in every 119,766 boys born was named Gennaro. FALLING Recent data shows the name is currently falling.