Rubroshorea beccariana is a tree in the family Dipterocarpaceae which is endemic to Borneo.
The species was first described as Shorea beccariana by William Burck in 1887. It is named for the Italian botanist Odoardo Beccari. In 2022 Peter Shaw Ashton and Jacqueline Heckenhauer placed it in the genus Rubroshorea as R. beccariana.
Rubroshorea beccariana grows up to tall, with a trunk diameter of up to . It has buttresses up to tall. The bark is generally smooth. The leathery leaves are ovate to elliptic and measure up to long. The inflorescences measure up to long and bear up to eight pink flowers. The nuts are egg-shaped and measure up to long.
Rubroshorea beccariana is endemic to Borneo. Its habitat is mixed dipterocarp forests, to elevations of .