Issac is a distinctive boys' name in United States, ranking #562 in 2015 with 509 recorded births. This places Issac in the top 4% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2008 with 820 births ranking #376. Since 1996, the popularity has increased by 32.6%. In 2015, approximately 1 in every 3,765 boys born was named Issac. FALLING Recent data shows the name is currently falling.