Khan Bahadur Ahsanullah (27 December 1873 – 9 February 1965)[1] was an educator, litterateur, Islamic theologist and social reformer of pre-partition India.

[3] Ahsanullah completed his MA in philosophy from Presidency College, Kolkata in 1895, and went on to serve as first Muslim headmaster of Rajshahi Collegiate School.

In 1911 he was awarded fellowship in The Royal Society for the Encouragement of Arts, Manufactures and Commerce (RSA) which has worldwide member of 30,000 (as of 2020[update]).

[3] He became the first person amongst the Hindus and Muslims of Undivided Bengal to join the Indian Education Service.

Then, in 1958, Ahsanullah founded the Dhaka Ahsania Mission (DAM), a non-profitable organization with broad social goals.