Isak is a distinctive boys' name in United States, ranking #2850 in 2008 with 42 recorded births. This places Isak in the top 19% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2004 with 57 births ranking #2084. Since 1996, the popularity has increased by 68.0%. In 2008, approximately 1 in every 48,570 boys born was named Isak. RISING Recent data shows the name is currently rising.