Dracontomelon dao, also known as just Dao, is a Philippine native tree.
A large tree which grows around 30 meters tall but is known to reach heights more than that at times. The trunk of the tree is known to get as big as 1 meter across in diameter, sometimes even more, and the tree is also distinct for its prominent buttress roots. Its leaves are pinnately compound, with the leaflets being arranged in an alternating phyllotaxy, the leaflets are oblong in shape and are glabrous, the leaflets taper at their base and have a pointed apex. Its inflorescence occurs in a panicle, with the individual florets being white and fragrant, and is 5-merous. The fruit of the Dao is a globose fleshy drupe that begins as green and turns yellow as it ripens. Also called the Pacific Walnut, the Dao is the namesake of Dao in Capiz and Barangay Dau in Mabalacat, Pampanga. The edible fruits were found to have antibacterial and antifungal properties. The wood is used for plywood, veneers, furniture, and interior trimming.