Symplocos buxifolioides is a tree in the family Symplocaceae, native to Borneo. The specific epithet buxifolioides refers to the species' resemblance to Symplocos buxifolia.
Symplocos buxifolioides grows up to 10m (30feet) tall, with a trunk diameter of up to . The curved twigs are brown to black. The leathery leaves are elliptic to ovate and measure up to long. The inflorescences feature racemes bearing one to three white flowers.
Symplocos buxifolioides is endemic to Borneo, where it is known only from Mount Kinabalu in Sabah. Its habitat is montane forests, at elevations of .
Symplocos buxifolioides has been assessed as vulnerable on the IUCN Red List. With its very small population, extreme rainfall and/or landslides could push the species towards critical endangerment. Being in Kinabalu Park affords the species a level of protection.