Parashorea smythiesii is a species of plant in the family Dipterocarpaceae. It is endemic to Borneo (Brunei, Sabah, Sarawak, and east Kalimantan). It is a large emergent tree, up to 55 m tall, found in mixed and upper dipterocarp forests on fertile clay soils. It is found in some protected areas.
Parashorea smythiesii was named after Bertram Evelyn Smythies.