Izaac is a distinctive boys' name in United States, ranking #1192 in 2005 with 134 recorded births. The name reached its all-time peak in 2009 with 151 births ranking #1199. Since 1996, the popularity has increased by 272.2%. In 2005, approximately 1 in every 14,904 boys born was named Izaac. STABLE Recent data shows the name is currently stable.