Gustabo is a distinctive boys' name in United States, ranking #4760 in 1997 with 13 recorded births. The name reached its all-time peak in 2000 with 21 births ranking #3823. Since 1996, the popularity has decreased by 31.6%. In 1997, approximately 1 in every 145,007 boys born was named Gustabo. FALLING Recent data shows the name is currently falling.