The Mohaka Viaduct is a railway viaduct spanning the Mohaka River in northern Hawke’s Bay, on the East Coast of the North Island of New Zealand, near the small settlement of Raupunga. It was built between 1930 and 1937 by the Public Works Department for the New Zealand Railways Department. It is 276.8 metres in length, and at 95 metres, is the tallest viaduct in Australasia.