Madhuca korthalsii is a tree in the family Sapotaceae. It is named for the Dutch botanist P. W. Korthals.
Madhuca korthalsii grows up to tall, with a trunk diameter of up to 50cm (20inches). The bark is brown. Inflorescences bear up to five white flowers.
Madhuca korthalsii is native to Sumatra, Peninsular Malaysia, Singapore and Borneo. Its habitat is lowland mixed dipterocarp forest to 1200m (3,900feet) altitude.
Madhuca korthalsii has been assessed as near threatened on the IUCN Red List. The species is threatened by logging and conversion of land for palm oil plantations.