Izaak is a distinctive boys' name in United States, ranking #1628 in 1998 with 64 recorded births. The name reached its all-time peak in 2011 with 138 births ranking #1255. Since 1996, the popularity has increased by 39.1%. In 1998, approximately 1 in every 29,864 boys born was named Izaak. STABLE Recent data shows the name is currently stable.