The Osmani Museum is named after Bangabir General Muhammad Ataul Gani Osmani, the Commander-in-Chief of Bangladesh Forces (12 April 1971 – 7 April 1972) during the liberation war. It is situated at the heart of the Sylhet City Corporation area in the Sylhet Division of Bangladesh. It is about 12 km from the Sylhet Osmani International Airport and 3 km from the Sylhet Railway Station. Owned aoperated by the Bangladesh National Museum, this museum was established to pay rich tribute to the great hero of Bangladesh for his outstanding contributions in the liberation war of the country and founding the armed forces of Bangladesh. The foundation stone had been laid on 16 February 1985 and it was inaugurated on 4 March 1987 by the then president of Bangladesh H M Ershad.

Muhammad Ataul Gani Osmani also known as Bangabir (the Hero of Bengal) was born on 1 September 1918 in Sunamganj of Sylhet. He was the commander-in-chief of the Mukti Bahini during the 1971 Bangladesh Liberation War and was the first Bengali four star general. Osmani’s career spanned over five decades, beginning with his service in the British Indian Army in 1939. He fought in Burma during World War II, and served in the Pakistan Army until 1967. Osmani was appointed head of the Bengali armed resistance in 1971 by the Provisional Government of Bangladesh, and he is regarded as the founder of the Bangladesh Armed Forces. General Osmani retired in 1972. He died on 16 February 1984 in London.