Gennaro is a distinctive boys' name in United States, ranking #5833 in 2010 with 15 recorded births. The name reached its all-time peak in 2022 with 39 births ranking #3116. Since 1996, the popularity has decreased by 16.7%. In 2010, approximately 1 in every 127,894 boys born was named Gennaro. FALLING Recent data shows the name is currently falling.