Madhuca silamensis is a tree in the family Sapotaceae. It is named for Mount Silam in Borneo.
Madhuca silamensis grows up to tall, with a trunk diameter of up to 15cm (06inches). The bark is greyish brown. Inflorescences bear up to three flowers.
Madhuca silamensis is endemic to Borneo, where it is known from only two locations in Sabah. Its habitat is lowland forests growing on ultrabasic soils up to 850m (2,790feet) elevation.
Madhuca silamensis has been assessed as endangered on the IUCN Red List. The species is threatened by logging and conversion of land for palm oil plantations.