Isidore is a distinctive boys' name in United States, ranking #3473 in 2024 with 33 recorded births. The name reached its all-time peak in 2023 with 34 births ranking #3443. Since 1996, the popularity has increased by 560.0%. In 2024, approximately 1 in every 51,979 boys born was named Isidore. STABLE Recent data shows the name is currently stable.