Izaiah is a distinctive boys' name in United States, ranking #853 in 1998 with 171 recorded births. The name reached its all-time peak in 2009 with 742 births ranking #400. Since 1996, the popularity has increased by 116.5%. In 1998, approximately 1 in every 11,177 boys born was named Izaiah. FALLING Recent data shows the name is currently falling.