The Blayney–Demondrille railway line is a railway line in New South Wales, Australia. The line is used mainly for grain haulage and is owned by the Transport Asset Holding Entity, a government department of Transport for NSW. However, in 2004 the Australian Rail Track Corporation became responsible for operations over the line. The Lachlan Valley Railway operated heritage and tourist trains over the line, based at Cowra. It previously also operated general goods trains.

The Lachlan Valley Railway Society is an Australian rail preservation society based in the New South Wales Central Western town of Cowra. It was established in 1974 to preserve and operate former New South Wales Government Railways locomotives and rolling stock. It operates regular heritage train tours to a variety of locations across New South Wales.