Yogin Ma (Bengali: যোগীন মা) (16 January 1851 - 4 June 1924), born Yogindra Mohini Biswas, was one of the principal female disciples of Sarada Devi, the wife and spiritual consort of the Hindu mystic Ramakrishna.

Yogin Ma was born as Yogindra Mohini Biswas in Calcutta on 16 January 1851 to Prasanna Kumar Mitra, a successful physician.

Yogin Ma finally left her husband's place with her only daughter and took shelter with her widowed mother in her father's house in Bagbazar area of Calcutta.

[1] Adversity propelled her to develop intense yearning for God Realization and a chance encounter with Ramakrishna, the 19th century mystic saint of Bengal, changed her life.

Her daughter Ganu died and she was left with three grandsons who were brought up under the tutelage of Swami Saradananda, and at least one of them later joined the order and was initiated by Sarada Devi.

The American disciple of Swami Paramananda, sister Devmata recollects about her, "Yogin-ma always seemed to me one of the noblest of Ramakrishna's disciples… She did not abandon her householder life, but no nun in a cloister was more rigid in her spiritual observance than she… No service was ever omitted, no care neglected."