Payena khoonmengiana is a tree in the family Sapotaceae.

[2] It grows up to 15 metres (50 ft) tall with a trunk diameter of up to 13 centimetres (5 in).

The tree is named for forest botanist Meng Wong Khoon.

It has a small range, and its estimated area of occupancy (AOO) and extent of occurrence (EOO) are both 20 km2.

Its habitat is lowland rain forest from 265 to 422 metres elevation.