The Hare Krishna mantra, also referred to reverentially as the Mahā-mantra, is a 16-word Vaishnava mantra mentioned in the Kali-Saṇṭāraṇa Upaniṣad. In the 15th century, it rose to importance in the Bhakti movement following the teachings of Chaitanya Mahaprabhu. This mantra is composed of three Sanskrit names – "Krishna", "Rama", and "Hare".

The International Society for Krishna Consciousness (ISKCON), known colloquially as the Hare Krishna movement, is a Gaudiya Vaishnava Hindu religious organization. It was founded on 13 July 1966 in New York City by A. C. Bhaktivedanta Swami Prabhupada. Its main headquarters is located in Mayapur, West Bengal, India.