Gianmarco is a distinctive boys' name in United States, ranking #6135 in 2021 with 14 recorded births. The name reached its all-time peak in 2005 with 48 births ranking #2408. Since 1996, the popularity has increased by 55.6%. In 2021, approximately 1 in every 124,874 boys born was named Gianmarco. STABLE Recent data shows the name is currently stable.