Debendranath Tagore (15 May 1817 – 19 January 1905) was a Hindu philosopher and religious reformer, active in the Brahmo Samaj (“Society of Brahma,” also translated as “Society of God”). He was the founder in 1848 of the Brahmo religion, which today is synonymous with Brahmoism. Born in Shilaidaha, his father was the industrialist Dwarkanath Tagore.
The original surname of the Tagores was Kushari. They were Rarhi Brahmins and originally belonged to a village named Kush in the district named Burdwan in West Bengal. The biographer of Rabindranath Tagore, Prabhat Kumar Mukhopadhyaya wrote in the first volume of his book Rabindrajibani O Rabindra Sahitya Prabeshika that,The Kusharis were the descendants of Deen Kushari, the son of Bhatta Narayana; Deen was granted a village named Kush (in Burdwan zilla) by Maharaja Kshitisura, he became its chief and came to be known as Kushari.