Ramakrishna Math and Ramakrishna Mission (RKM) is a spiritual and philanthropic organisation headquartered in Belur Math, West Bengal. The mission is named after the Indian Hindu spiritual guru and mystic Ramakrishna. The mission was founded by Ramakrishna's chief disciple Swami Vivekananda on 1 May 1897. The organisation mainly propagates the Hindu philosophy of Vedanta–Advaita Vedanta and four yogic ideals – Jnana, Bhakti, Karma, and Raja yoga. The mission bases its work on the principles of Karma Yoga, the principle of selfless work done with a dedication to God.

Belur Math is the headquarters of the Ramakrishna Math and Ramakrishna Mission, founded by Swami Vivekananda, the chief disciple of Ramakrishna Paramahamsa. It is located in Belur, West Bengal, India on the west bank of Hooghly River. Belur Math was established in January 1897, by Swami Vivekananda who was the disciple of Sri Ramakrishna. Swami Vivekananda returned back to India from Colombo with a small group of disciples and started work on the two one at Belur, and the others at Mayavati, Almora, Himalayas called the Advaita Ashrama. The temple is the heart of the Ramakrishna movement. It is notable for its architecture that fuses Hindu, Islamic, Buddhist, and Christian art and motifs as a symbol of unity of all religions. In 2003, Belur Math railway station was also inaugurated which is dedicated to Belur Math Temple.