Issac is a distinctive boys' name in England & Wales, ranking #615 in 2025 with 61 recorded births. This places Issac in the top 10% of ranked UK boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2019 with 114 births ranking #382. Since 1996, the popularity has increased by 281.3%. In 2025, approximately 1 in every 4,458 boys born was named Issac. FALLING Recent data shows the name is currently falling.