Izaak is a distinctive boys' name in United States, ranking #1415 in 2006 with 111 recorded births. The name reached its all-time peak in 2011 with 138 births ranking #1255. Since 1996, the popularity has increased by 141.3%. In 2006, approximately 1 in every 18,515 boys born was named Izaak. STABLE Recent data shows the name is currently stable.