Isidore is a distinctive boys' name in United States, ranking #6726 in 2002 with 10 recorded births. The name reached its all-time peak in 2023 with 34 births ranking #3443. Since 1996, the popularity has increased by 100.0%. In 2002, approximately 1 in every 194,147 boys born was named Isidore. STABLE Recent data shows the name is currently stable.