The Hay railway line is a partly closed railway line in New South Wales, Australia. The line branches from the Main South line at Junee, and passes in a westwards direction through the towns of Coolamon and Narrandera to Yanco. The first train arrived in Hay on 4 July 1882. The line beyond Yanco to Hay is now closed, although the section to Willbriggie remained open for grain haulage until 2004. At Yanco, the still-open Yanco to Griffith line branches off in a northwesterly direction to Griffith.