Dipterocarpus pachyphyllus is a tree in the family Dipterocarpaceae. The specific epithet pachyphyllus means 'thick leaves'.
Description Dipterocarpus pachyphyllus grows as a tree up to tall, with a trunk diameter of up to . Its bark is chocolate-brown. The fruits are roundish, up to long.
Distribution and habitat Dipterocarpus pachyphyllus is endemic to Borneo. Its habitat is mixed dipterocarp forests and hilly land to elevation.
Conservation Dipterocarpus pachyphyllus has been assessed as vulnerable on the IUCN Red List. The species is threatened by logging and land conversion. In Kalimantan, forest fires are a threat.
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