Saroj Nalini Dutt (née De) MBE (9 October 1887 – 19 January 1925) was an Indian feminist and social reformer.

[2] She was born in her father, Brajendranath De's, country house in Bandel, near Hooghly, in Bengal Province.

Members of her paternal family frequently visited the Brahmo Sammilan Samaj in Bhowanipore, Calcutta.

She started her first Mahila Samiti in 1913 in Pabna district with the object of developing friendly cooperation among the purdahnashin ladies.

Subsequently, she started the Mahila Samitis of Birbhum (1916), Sultanpur (1917), and Rampurhat (1918) districts respectively.