Siddhartha first appears in the U.S. registration record in 1970. Its popularity climbed over the following decades. In 2015, 33 babies received the name (ranked #3419). Today it sits well outside the top 1,000 (around #6342), with roughly 17 babies named Siddhartha each year. Siddhartha has been declining in recent years. In total, around 523 babies have been registered with this name since 1880.