Ratargul Swamp Forest is a fresh water swamp forest located in Gowain River, Sylhet, Bangladesh. It is the only swamp forest located in Bangladesh and one of the few freshwater swamp forest in the world.
Its area is 3, 325.61 acre including 504 acre declared as the animal sanctuary in 2015. It is known as the Amazon Bangla and Sundarbans of Sylhet. This is only swamp forest in Bangladesh is located 26 kilometres (16 mi) far from Sylhet.