Dipterocarpus gracilis (Tagalog: panao) is a critically endangered species of tree in the family Dipterocarpaceae, native to South Asia and Southeast Asia. The species is found in Kalimantan, Bangladesh, India (the Andaman and Nicobar Islands, Arunachal Pradesh, Assam and Tripura), Indonesia (Java, Kalimantan, Sumatra), Peninsular Malaysia, Myanmar, Thailand and the Philippines. This large tree is found in lowland seasonal semi-evergreen and evergreen dipterocarp forests.