The Wilts, Somerset and Weymouth Railway (WS&WR) was an early railway company in south-western England. It obtained Parliamentary powers in 1845 to build a railway from near Chippenham in Wiltshire, southward to Salisbury and Weymouth in Dorset. It opened the first part of the network but found it impossible to raise further money and sold its line to the Great Western Railway (GWR) in 1850. Much of the network is in operation today, but the Devizes and Radstock branches have closed.