Gianni is a distinctive boys' name in United States, ranking #725 in 1999 with 226 recorded births. The name reached its all-time peak in 2020 with 897 births ranking #354. Since 1996, the popularity has increased by 105.5%. In 1999, approximately 1 in every 8,496 boys born was named Gianni. FALLING Recent data shows the name is currently falling.