The Prince Alfred Bridge is a wrought iron truss and timber beam partially-disused road bridge over the Murrumbidgee River and its floodplain at Middleton Drive, Gundagai, Cootamundra-Gundagai Regional Council, New South Wales, Australia. The heritage-listed road bridge was designed by William Christopher Bennett and built from 1864 to 1867 by Francis Bell. It is also known as Prince Alfred Bridge – Iron Road Bridge and Iron Bridge over Murrumbidgee River at Gundagai. The iron bridge is owned by Transport for NSW and the timber viaduct is owned by Crown Lands. The bridge was added to the New South Wales State Heritage Register on 5 July 2019 and on the Register of the National Estate on 21 March 1978.

The Murrumbidgee River is a major tributary of the Murray River within the Murray–Darling basin and the second longest river in Australia. It flows through the Australian state of New South Wales and the Australian Capital Territory, descending 1,500 metres (4,900 ft) over 1,485 kilometres (923 mi), generally in a west-northwesterly direction from the foot of Peppercorn Hill in the Fiery Range of the Snowy Mountains towards its confluence with the Murray River near Boundary Bend.