Giancarlo is a distinctive boys' name in United States, ranking #913 in 1998 with 157 recorded births. The name reached its all-time peak in 2008 with 381 births ranking #641. Since 1996, the popularity has increased by 24.6%. In 1998, approximately 1 in every 12,174 boys born was named Giancarlo. FALLING Recent data shows the name is currently falling.