Issac is a moderately popular boys' name in United States, ranking #403 in 2001 with 618 recorded births. This places Issac in the top 3% of ranked US boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2008 with 820 births ranking #376. Since 1996, the popularity has increased by 60.9%. In 2001, approximately 1 in every 3,144 boys born was named Issac. FALLING Recent data shows the name is currently falling.