Izaak is a distinctive boys' name in United States, ranking #1397 in 2009 with 122 recorded births. The name reached its all-time peak in 2011 with 138 births ranking #1255. Since 1996, the popularity has increased by 165.2%. In 2009, approximately 1 in every 16,257 boys born was named Izaak. STABLE Recent data shows the name is currently stable.