Parishia trifoliolata is a flowering plant in the family Anacardiaceae. It is native to Borneo.
Parishia trifoliolata grows as a tree up to tall, with a trunk diameter of up to . It has brown twigs. The leathery leaves are oblong and measure up to long and to wide. The fruits are .
Parishia trifoliolata was described by Malaysian botanist K. M. Kochummen in 1996. The type specimen was collected in Sarawak. The specific epithet trifoliolata means 'three leaflets', referring to the leaves.
Parishia trifoliolata is endemic to Borneo, where it is confined to Sarawak. Its habitat is in lowland kerangas forests, to elevation.
Parishia trifoliolata has been assessed as endangered on the IUCN Red List. It is threatened by conversion of land for plantations including for palm oil. The species is not known to be harvested for its timber or other purposes. Parishia trifoliolata is present in one protected area, Samunsam Wildlife Sanctuary.