Kumudini Basu (née Mitra, 1873–1942) was a Bengali writer, social reformer, freedom fighter and women's rights activist in British India.

Basu was born in 1873 in Calcutta, West Bengal, India, and was the eldest daughter of the Indian nationalist Krishna Kumar Mitra.

[8] She served as secretary of the Bharat Stree Mahamandal (The Great Circle of Indian Women), which aimed to promote female education.

[9] She proposed that sex workers should register with the police and be forced to use separate polling stations to vote.

[9] Basu also denounced the practice of purdah as one of the principal causes of "spiritual, intellectual, and physical degeneration of both men and women.