Lachlan Valley Railway, Railway museum in Cowra, New South Wales, Australia.

The Lachlan Valley Heritage Railway Centre in Cowra displays a collection of historic steam locomotives, diesel engines, passenger carriages, and goods wagons. A restored roundhouse contains railway artifacts that illustrate the technical and operational aspects of the region's rail transport history.

The museum was founded in 1974 by a railway preservation society starting with locomotive 5917 and four carriages. The collection gradually expanded to document the evolution of rail transport in New South Wales across several decades.

The museum preserves the railway heritage of New South Wales through its collection of steam locomotives and historical passenger carriages. Visitors can experience how rail transport shaped the region's development and connected its communities.

The society's complex at the 1923-built Cowra roundhouse is open to visits daily, housing more than 55 carriages and locomotives under cover. Note that rolling stock kept at Cowra has been landlocked since RailCorp closed the line in 2009, so trains for tours elsewhere are moved by road.

The society's Cowra depot holds more than 55 carriages and locomotives under cover, among them CPH railmotors and a 620/720 railcar set. Its trains became landlocked after RailCorp closed the line in 2009, so stock needed by tours elsewhere has to leave by road transport.