Rubroshorea ovalis is a species of flowering plant in the family Dipterocarpaceae. It is a large fast-growing tree, up to 50 meters tall, which is native to Borneo, Sumatra, Peninsular Malaysia, and Singapore. It flowers every 3 to 4 years between March and June. Flowers are pollinated by insects and seeds are dispersed by the wind.
It grows in lowland mixed dipterocarp forests on hills and clay soils up to 500 meters elevation. Trees form ectomycorrhizal root associations.