Manishi Dey was an Indian painter of the Bengal School of Art. Manishi Dey was the younger brother of Mukul Dey, a pioneering Indian artist and dry point etcher. Their two sisters, Annapura and Rani, were accomplished in arts and crafts as well.

The Bengal School of Art, commonly referred as Bengal School, was an art movement and a style of Indian painting that originated in Bengal, primarily Kolkata and Shantiniketan, and flourished throughout the Indian subcontinent, during the British Raj in the early 20th century. Also known as 'Indian style of painting' in its early days, it was associated with Indian nationalism (swadeshi) and led by Abanindranath Tagore (1871–1951), and was also being promoted and supported by British arts administrators like E. B. Havell, the principal of the Government College of Art and Craft, Kolkata from 1896; eventually it led to the development of the modern Indian painting.