Deba Prasad Mitra (29 December 1902 – 8 February 1978), son of Jyotirindraprasad Mitra (1869–1918), was a renowned clinical pathologist and religious and social worker connected with the Brahmo Samaj.
His life and work were greatly inspired and stimulated by the lives of his grandfather Braja Sundar Mitra (1820–1875), the founder of the East Bengal Brahmo Samaj at Dhaka (now in Bangladesh) and an inaugurator of the New Age in Dhaka and Eastern Bengal as a whole, and also his mother's grandfather Sib Chandra Deb (1811–1890), a pupil of Henry Louis Vivian Derozio at the Hindu College, the Founder-Secretary of the Sadharan Brahmo Samaj, Kolkata, and pioneer of the modernization of his native village Konnagar, a few kilometers from Kolkata.
Devaprasad's father Jyotirindraprasad was a qualified advocate and practiced law for some time, but when he found that one had to resort to falsehood for success in the legal profession, he gave it up and joined the service of the estate of the Tripura Native State at Comilla (now in Bangladesh).