Rani Rashmoni (Bengali: রানি রাসমণি, 1793—1861) was the founder of the Dakshineswar Kali Temple, Kolkata, and remained closely associated with Sri Ramakrishna Paramhansa after she appointed him as the priest of the temple. Her other construction works include the construction of a road from Subarnarekha River to Puri for the pilgrims, Babughat (also known as Rani Rashmoni Ghat), Ahiritola Ghat and Nimtola Ghat for the everyday bathers at the Ganges. She also offered considerable charity to the Imperial Library (now the National Library of India), the Hindu College (now Presidency College).
Presently, the Lokamata Rani Rashmoni Mission is situated at Nimpith, South 24 Parganas, West Bengal, 743338, India.
She was born on 28 September 1793 into a Mahishya family. Her father was Harekrishna Das, a boatman by profession, belonging to the Kaivarta class, living in Kona village, in present-day North 24 Parganas. Exceptionally beautiful, she was married to Babu Rajachandra Das of Janbazar, Kolkata, a member of a wealthy zamindar family, when she was eleven years old. After her husband's death she took charge of the zamindari and business. She soon proved herself a natural leader. While the prestige of the zamindari grew, Rani Rashmoni, being very pious from childhood, continued to lead an extremely religious and austere life, befitting a widow in Indian Bengali Hindu society. Rani Rashmoni died on 19 February 1861.
The Rani and her clashes with the British in India became household tales in her time. By blocking the shipping trade on a part of Ganges she compelled the British to abolish the tax imposed on fishing in the river, which threatened the livelihood of poor fishermen. When Puja processions were stopped by the British on the charge that they disturbed the peace, she defied the orders. The British had to withdraw the penalty imposed on her in the face of public opposition and rioting in her support.