Gianni is a distinctive boys' name in United States, ranking #566 in 2005 with 417 recorded births. The name reached its all-time peak in 2020 with 897 births ranking #354. Since 1996, the popularity has increased by 279.1%. In 2005, approximately 1 in every 4,789 boys born was named Gianni. FALLING Recent data shows the name is currently falling.