Ratargul Swamp Forest is a freshwater swamp forest located in Gowainghat, Sylhet, Bangladesh. It is the only swamp forest located in Bangladesh and one of the few freshwater swamp forest in the world. The forest is naturally conserved under the Department of Forestry, Bangladesh. The evergreen forest is situated by the river Goain and linked with the channel Chengir Khal. Most of the trees growing here are the Millettia pinnata. The forest is submerged under 20–30 feet water in the rainy season