Giancarlo is a distinctive boys' name in United States, ranking #785 in 2001 with 215 recorded births. The name reached its all-time peak in 2008 with 381 births ranking #641. Since 1996, the popularity has increased by 70.6%. In 2001, approximately 1 in every 9,036 boys born was named Giancarlo. FALLING Recent data shows the name is currently falling.