Nagarbari-Mohanganj Dolphin Sanctuary (Bengali: নগরবাড়ি-মোহনগঞ্জ শুশুক অভয়ারণ্য) is a dolphin sanctuary located at Bera Upazila under Pabna District of Bangladesh.

It is one of the three river-based dolphin sanctuaries in Padma-Jamuna confluence, the others being the Nazirganj Dolphin Sanctuary and the Shilanda-Nagdemra Dolphin Sanctuary.

[1] The area of the sanctuary is 408.11 ha (1,008.5 acres).

[2] Home to the endangered freshwater Ganges river dolphins, it was officially declared as a wildlife sanctuary by the government of Bangladesh on 1 December 2013.

[3]