Isaih is a distinctive boys' name in United States, ranking #2158 in 2006 with 60 recorded births. The name reached its all-time peak in 1999 with 74 births ranking #1521. Since 1996, the popularity has increased by 33.3%. In 2006, approximately 1 in every 34,252 boys born was named Isaih. FALLING Recent data shows the name is currently falling.