Lawachara is a national park and nature reserve in Bangladesh. It was established in 1996 as National Park. Lawachara is mainly a tropical forest. The park is located at Kamalganj Upazila, Maulvi Bazar District in the northeastern area of the country. It is located within the 2,740 ha. West Bhanugach Reserved Forest. To visit this place, Srimongol (Sreemangal) is the right place where you can stay at night or start from here. Lawachara National Park is about 1,250 ha of semi-evergreen forests.
Lawachara is now mostly secondary forest with small remnant areas of rich primary forest in Bangladesh. In the undergrowth there are bamboo groves (Bambusa burmanica) and (Melocanna baccifera), as well as several fern species. The western hoolock gibbon, Hoolock is a higher ape found in Bangladesh. Gobbon is one of the top twenty five endangered primates and one of the six non-human species got in Lawachara. A census in 2007 which counted only 69 individuals in 17 family groups were seen in Lawachara, West Bhanugach Reserved Forest. This is surviving gibbon population. The population of Gibbon is thought of serious significance as it is probably to be the last possible population of western hoolock gibbons.