Isidoro is a distinctive boys' name in United States, ranking #4330 in 1997 with 15 recorded births. This places Isidoro in the top 40% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 20 births ranking #3979. Since 1996, the popularity has increased by 15.4%. In 1997, approximately 1 in every 125,673 boys born was named Isidoro. RISING Recent data shows the name is currently rising.