Isaak is a distinctive boys' name in United States, ranking #996 in 2005 with 173 recorded births. The name reached its all-time peak in 2009 with 218 births ranking #940. Since 1996, the popularity has increased by 78.4%. In 2005, approximately 1 in every 11,544 boys born was named Isaak. FALLING Recent data shows the name is currently falling.