Ostrya japonica (Japanese Hop-hornbeam) is a species of tree in the Betulaceae family growing to 25 m tall. It is native to Japan, Korea and China. In China, it occurs in temperate forests of southern Gansu, Hebei, Henan, Hubei, and Shaanxi provinces at altitudes between 1,000–2,800 metres (3,300–9,200 ft).