Giancarlo is a distinctive boys' name in United States, ranking #667 in 2003 with 298 recorded births. The name reached its all-time peak in 2008 with 381 births ranking #641. Since 1996, the popularity has increased by 136.5%. In 2003, approximately 1 in every 6,628 boys born was named Giancarlo. FALLING Recent data shows the name is currently falling.