Bukit Tigapuluh National Park, National park in eastern Sumatra, Indonesia

Bukit Tigapuluh National Park covers 143,223 hectares of tropical lowland forest in eastern Sumatra, mostly in Riau province with about 33,000 hectares in Jambi. Its stands are dominated by meranti (Shorea) and other Dipterocarpaceae, and the park holds primary forest, logged-over forest and secondary scrub. It forms part of the Tesso Nilo Complex and protects the hydrology of the Kuantan Indragiri watershed.

The park was established in 1995 following research conducted in the early 1990s that demonstrated its ecological importance. It was expanded in 2002 to reach its current size.

The Talang Mamak and Orang Rimba communities have inhabited these forests for generations, maintaining daily practices that depend on the forest's resources. Visitors walking through can observe how these groups live closely with the land around them.

The park is remote and requires a long journey from the nearest city, plus mandatory permits before visiting. Roads are mostly unpaved and access can be challenging depending on the season.

The park is home to a rehabilitation center where orangutans are trained before returning to the wild. More than 160 of these animals have been successfully released back into the forest since 2001.