Isaak is a distinctive boys' name in United States, ranking #1203 in 1999 with 106 recorded births. This places Isaak in the top 10% 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 1999, approximately 1 in every 18,114 boys born was named Isaak. FALLING Recent data shows the name is currently falling.