Isadore is a distinctive boys' name in United States, ranking #5858 in 2002 with 12 recorded births. This places Isadore in the top 47% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2020 with 19 births ranking #4924. Since 1996, the popularity has increased by 33.3%. In 2002, approximately 1 in every 161,789 boys born was named Isadore. RISING Recent data shows the name is currently rising.