Gennaro is a distinctive boys' name in United States, ranking #4915 in 2025 with 20 recorded births. The name reached its all-time peak in 2022 with 39 births ranking #3116. Since 1996, the popularity has increased by 11.1%. In 2025, approximately 1 in every 85,404 boys born was named Gennaro. FALLING Recent data shows the name is currently falling.