Gianni is a distinctive boys' name in United States, ranking #710 in 2002 with 250 recorded births. The name reached its all-time peak in 2020 with 897 births ranking #354. Since 1996, the popularity has increased by 127.3%. In 2002, approximately 1 in every 7,766 boys born was named Gianni. FALLING Recent data shows the name is currently falling.