Palaquium rioense is a tree in the family Sapotaceae. The specific epithet rioense refers to Sumatra's Riau province.
Palaquium rioense grows up to 40m (130feet) tall. The bark is brown. The flowers are brownish. The fruits are obovoid, up to 2cm (01inches) long.
Palaquium rioense is native to Riau and Borneo. Its habitat is hill and montane forests at NaNm (-2,147,483,648feet) altitude.