Siddhartha is a distinctive boys' name in United States, ranking #5452 in 2008 with 17 recorded births. The name reached its all-time peak in 2015 with 33 births ranking #3419. Since 1996, the popularity has increased by 70.0%. In 2008, approximately 1 in every 119,997 boys born was named Siddhartha. STABLE Recent data shows the name is currently stable.