John Samuel Hagelin is the leader of the Transcendental Meditation (TM) movement in the United States. He is president of Maharishi International University (MIU) in Fairfield, Iowa, and honorary chair of its board of trustees. The university was established in 1973 by the TM movement's founder, Maharishi Mahesh Yogi, to deliver a "consciousness-based education".

Maharishi Mahesh Yogi was the creator of Transcendental Meditation (TM) and leader of the worldwide organization that has been characterized in multiple ways, including as a new religious movement and as non-religious. He became known as Maharishi and Yogi as an adult.