Isadore is a distinctive boys' name in United States, ranking #6978 in 2022 with 12 recorded births. The name reached its all-time peak in 2020 with 19 births ranking #4924. Since 1996, the popularity has increased by 33.3%. In 2022, approximately 1 in every 145,364 boys born was named Isadore. RISING Recent data shows the name is currently rising.