Giancarlo is a distinctive boys' name in United States, ranking #817 in 2000 with 197 recorded births. The name reached its all-time peak in 2008 with 381 births ranking #641. Since 1996, the popularity has increased by 56.3%. In 2000, approximately 1 in every 9,969 boys born was named Giancarlo. FALLING Recent data shows the name is currently falling.