Isac is a distinctive boys' name in United States, ranking #3450 in 2021 with 33 recorded births. This places Isac in the top 24% 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 46.8%. In 2021, approximately 1 in every 52,977 boys born was named Isac. RISING Recent data shows the name is currently rising.