Isaac is a highly popular boys' name in United States, ranking #47 in 2025 with 5,953 recorded births. The name reached its all-time peak in 2007 with 10,274 births ranking #41. Since 1996, the popularity has increased by 30.4%. In 2025, approximately 1 in every 287 boys born was named Isaac. STABLE Recent data shows the name is currently stable.