Gianni is a distinctive boys' name in United States, ranking #656 in 2003 with 302 recorded births. The name reached its all-time peak in 2020 with 897 births ranking #354. Since 1996, the popularity has increased by 174.5%. In 2003, approximately 1 in every 6,541 boys born was named Gianni. FALLING Recent data shows the name is currently falling.