Engelhardia mersingensis is a tree in the family Juglandaceae.

[2] Engelhardia mersingensis grows up to 30 m (100 ft) tall, with a trunk diameter of up to 70 cm (28 in).

The papery leaves are obovate to elliptic and measure up to 11 cm (4.3 in) long.

[2] Engelhardia mersingensis is endemic to Borneo.

Its habitat is mixed dipterocarp to submontane forests, at elevations of 600–1,000 m (2,000–3,300 ft).