Isaya is a distinctive boys' name in United States, ranking #10471 in 2004 with 6 recorded births. This places Isaya in the bottom 21% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2002 with 8 births ranking #7933. In 2004, approximately 1 in every 330,800 boys born was named Isaya. FALLING Recent data shows the name is currently falling.