Gianni is a distinctive boys' name in England & Wales, ranking #2440 in 2025 with 9 recorded births. The name reached its all-time peak in 1998 with 47 births ranking #445. Since 1996, the popularity has decreased by 40.0%. In 2025, approximately 1 in every 30,215 boys born was named Gianni. FALLING Recent data shows the name is currently falling.