Siddhartha is a distinctive boys' name in United States, ranking #4108 in 2012 with 25 recorded births. The name reached its all-time peak in 2015 with 33 births ranking #3419. Since 1996, the popularity has increased by 150.0%. In 2012, approximately 1 in every 75,865 boys born was named Siddhartha. STABLE Recent data shows the name is currently stable.