Macleay River railway bridge, Kempsey, Heritage railway bridge in Kempsey, Australia.

The Macleay River Railway Bridge is a railway viaduct across a river in New South Wales with five spans of different construction types. Three steel truss sections alternate with two sturdier spans to create a stable crossing over the water.

The bridge opened on 3 December 1917, when the North Coast line was extended from Wauchope to Kempsey. Its steelwork was fabricated at the Walsh Island Dockyard & Engineering Works in Newcastle and shipped to Kempsey by sea. Floods in 1949 and 1950 damaged the crossing; the timber trestles were replaced with 1880s wrought iron Warren trusses from the Main Western line between Parramatta and Penrith. In 1966 the spans were raised by one metre and new pre-cast concrete approaches built.

The bridge shapes the local landscape as a functional railway structure from the early 20th century. It has connected communities along the North Coast line for generations, becoming part of how people experience travel in the region.

The viaduct is a visible element of the railway line that can be viewed from nearby roads or from surrounding vantage points. The best spot for photos and observation is from the nearby riverbanks or adjacent bridges.

The wrought iron Warren trusses that replaced the flood-damaged timber trestles in the early 1950s were 1880s-vintage sections taken from the Main Western line between Parramatta and Penrith. A plan to replace the whole bridge was dropped by 1953, so the older trusses stayed in service.