Izaak is a distinctive boys' name in England & Wales, ranking #638 in 2005 with 41 recorded births. The name reached its all-time peak in 2007 with 52 births ranking #580. Since 1996, the popularity has increased by 41.4%. In 2005, approximately 1 in every 7,547 boys born was named Izaak. STABLE Recent data shows the name is currently stable.