Isaak is a distinctive boys' name in United States, ranking #1219 in 1998 with 101 recorded births. This places Isaak in the top 11% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 218 births ranking #940. In 1998, approximately 1 in every 18,924 boys born was named Isaak. FALLING Recent data shows the name is currently falling.