Gianni is a distinctive boys' name in United States, ranking #629 in 2004 with 336 recorded births. The name reached its all-time peak in 2020 with 897 births ranking #354. Since 1996, the popularity has increased by 205.5%. In 2004, approximately 1 in every 5,907 boys born was named Gianni. FALLING Recent data shows the name is currently falling.