Isaia is a distinctive boys' name in United States, ranking #7794 in 2017 with 10 recorded births. The name reached its all-time peak in 2007 with 26 births ranking #3937. Since 1996, the popularity has decreased by 28.6%. In 2017, approximately 1 in every 185,032 boys born was named Isaia. FALLING Recent data shows the name is currently falling.