Gianni is a distinctive boys' name in United States, ranking #789 in 2001 with 214 recorded births. The name reached its all-time peak in 2020 with 897 births ranking #354. Since 1996, the popularity has increased by 94.5%. In 2001, approximately 1 in every 9,079 boys born was named Gianni. FALLING Recent data shows the name is currently falling.