Isak is a distinctive boys' name in United States, ranking #2931 in 1997 with 26 recorded births. This places Isak in the top 27% 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. In 1997, approximately 1 in every 72,503 boys born was named Isak. RISING Recent data shows the name is currently rising.