The Lake Cargelligo railway line is a railway line in Central Western New South Wales, Australia. The first sod was turned commencing construction on 8 June 1913 with the line opening on 13 November 1917. The line branches from the Main South line at Cootamundra and travels in a north-westerly direction to the small town of Lake Cargelligo. The line is used primarily for grain haulage, although passenger service was provided until 1983. In December 2007, flooding washed away several sections of track between Ungarie and Lake Cargelligo rendering the track unpassable.