Shilanda-Nagdemra Dolphin Sanctuary () is a wildlife sanctuary located at Santhia 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 Nagarbari-Mohanganj Dolphin Sanctuary. The area of the sanctuary is . 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.
See also List of wildlife sanctuaries of Bangladesh
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