Gennaro is a distinctive boys' name in United States, ranking #4856 in 1999 with 14 recorded births. The name reached its all-time peak in 2022 with 39 births ranking #3116. Since 1996, the popularity has decreased by 22.2%. In 1999, approximately 1 in every 137,149 boys born was named Gennaro. FALLING Recent data shows the name is currently falling.