Gianni is a distinctive boys' name in United States, ranking #564 in 2015 with 500 recorded births. The name reached its all-time peak in 2020 with 897 births ranking #354. Since 1996, the popularity has increased by 354.5%. In 2015, approximately 1 in every 3,833 boys born was named Gianni. FALLING Recent data shows the name is currently falling.