Gustabo is a distinctive boys' name in United States, ranking #5341 in 2004 with 15 recorded births. The name reached its all-time peak in 2000 with 21 births ranking #3823. Since 1996, the popularity has decreased by 21.1%. In 2004, approximately 1 in every 132,320 boys born was named Gustabo. FALLING Recent data shows the name is currently falling.