Isaack is a distinctive boys' name in United States, ranking #7481 in 2003 with 9 recorded births. The name reached its all-time peak in 2004 with 13 births ranking #5931. Since 1996, the popularity has increased by 80.0%. In 2003, approximately 1 in every 219,474 boys born was named Isaack. FALLING Recent data shows the name is currently falling.