Giancarlo is a distinctive boys' name in United States, ranking #679 in 2004 with 297 recorded births. The name reached its all-time peak in 2008 with 381 births ranking #641. Since 1996, the popularity has increased by 135.7%. In 2004, approximately 1 in every 6,683 boys born was named Giancarlo. FALLING Recent data shows the name is currently falling.