Map - Dewanganj Upazila (Dewanganj)

Dewanganj (দেওয়ানগঞ্জ) is an Upazila of Jamalpur District, Mymensingh Division, Bangladesh. It covers an area of 266.59 km2, and is bounded by Char Rajibpur Upazila to the north, Islampur Upazila to the south, Baksiganj Upazila and Meghalaya, India to the east, and Gaibandha Sadar Upazila and Phulchhari Upazila to the west. Its main river is the Jamuna River (the lower stream of the Brahmaputra River).

Dewanganj was first called 'Paddat Nagar,' named after a Hindu landlord. During the Mughal period, two saints, Dewan Shah Kamal and Dewan Shah Jamal, spread Islam in the area. Dewanganj is named after these two saints. In 1772, it was under Rangpur District. Then, in 1821, it was shifted to Bogura District. In 1866, it was shifted to Jamalpur Subdivision under Mymensingh District. Bahadurabad Ghat of this upazila was a very important place in the northern sector due to its strategic location.

In 1971, the Pakistani Army deployed one platoon of soldiers of the 31st Baluch Regiment, one company of para-military Rangers Forces and about 50 Razakars to keep full control over the Bahadurabad Ghat along with the Jamuna River. On July 3, 1971, a group of 400 Freedom Fighters attacked the Bahadurabad Ghat, under the command of Major Shafayet Jamil. The Pakistani Army was defeated in this three-day battle. With this victory, the Freedom Fighters were able to disrupt the railway communication between Jamalpur and Bahadurabaad Ghat.