Giancarlos is a distinctive boys' name in United States, ranking #5617 in 2018 with 16 recorded births. The name reached its all-time peak in 2010 with 48 births ranking #2564. Since 1996, the popularity has increased by 128.6%. In 2018, approximately 1 in every 113,467 boys born was named Giancarlos. FALLING Recent data shows the name is currently falling.