Palaquium rioense is a tree in the family Sapotaceae.

The specific epithet rioense refers to Sumatra's Riau province.

[2] Palaquium rioense grows up to 40 metres (130 ft) tall.

[2] Palaquium rioense is native to Riau and Borneo.

Its habitat is hill and montane forests at 300–1,500 metres (1,000–5,000 ft) altitude.