The name Siddharth is primarily used as a boy's name. It has a central origin which is Sanskrit. The meaning of Siddharth is 'the one who is accomplished or successful'. Some people also regard the meaning of the name as prosperous. It is a very popularly used name. It is the name of Lord Vishnu and was also Buddha's childhood name. People named Siddharth usually have a sporty mentality and can get everything done in their way. As an individual, they enjoy traveling around places like mountains or oceans. However, they may face several types of problems in their life. The moon sign associated with the name Siddharth is Aquarius. It has an air element with Saturn as the ruling planet.