Isac is a distinctive boys' name in United States, ranking #3755 in 2020 with 28 recorded births. This places Isac in the top 27% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 148 births ranking #1147. Since 1996, the popularity has decreased by 54.8%. In 2020, approximately 1 in every 61,609 boys born was named Isac. RISING Recent data shows the name is currently rising.