Sangu Matamuhari, Protected area in Bandarban District, Bangladesh.

Sangu Matamuhari is a 2,332-hectare wildlife sanctuary established on 6 April 2010 in Bandarban District, Chittagong Division, Bangladesh. It forms part of the Sangu reserve forest under the Lama Forest Division and lies beside the Sangu River. The sanctuary covers hills classified as Northern and Eastern Hills, with multi-storied semi-evergreen forest where most trees stay green while the tallest are deciduous.

This sanctuary gained official protection status in 2010 under Bangladesh's wildlife preservation laws, marking a significant effort to safeguard the region's natural environment. The designation established legal frameworks to conserve the area's ecological systems and biodiversity.

Mro people live around the sanctuary, and Rohingya refugee settlements stand near the forest. Local ethnic people run small shops and toilets inside the reserve, and about 1,200–1,300 people depend on it for fuel wood, sun grass, bamboo and medicinal plants.

The sanctuary lies beside the Sangu River in the Lama Forest Division, with a single forest range office and no proper boundary demarcation, so orientation is difficult. Transport is underdeveloped because of the remoteness. Local ethnic people run small shops and toilets stand inside the sanctuary. Visitors come mainly for nature trails and picnic sites.

The sanctuary covers 2,332 hectares of the Sangu reserve forest under the Lama Forest Division, beside the Sangu River. Camera traps near the sanctuary photographed a leopard in 2015, and local indigenous people report uncertain sightings of vagrant tigers in the reserve.