Izaak is a distinctive boys' name in United States, ranking #1406 in 2001 with 89 recorded births. The name reached its all-time peak in 2011 with 138 births ranking #1255. Since 1996, the popularity has increased by 93.5%. In 2001, approximately 1 in every 21,830 boys born was named Izaak. STABLE Recent data shows the name is currently stable.