Sunity Devi CIE (30 September 1864 – 10 November 1932) was the Maharani of the princely state of Cooch Behar, British India.

[1] She was a daughter of the renowned Brahmo Samaj reformist, Keshub Chandra Sen of Calcutta, and Jagonmohini Sen. She was married to Nripendra Narayan (1863-1911), the Maharaja of Cooch Behar in 1878, when she was only fourteen years of age.

This book contains the intimate life stories of the Mughal princesses Mumtaz Mahal, Reba, Zebunissa and Nur Jahan.

She also authored a short story collection, "Bengal Dacoits and Tigers", published in 1916 by Thacker, Spink and Company, Calcutta.

1887 – Companion of the Order of the Crown of India on the occasion of her attending with her husband Nripendra Narayan, the Golden jubilee celebration of Queen Victoria.