The Oswestry and Newtown Railway was a British railway company that built a line between Oswestry in Shropshire and Newtown Montgomeryshire, now Powys. The line opened in stages in 1860 and 1861. It was conceived to open up the area to rail transport, when local opinion formed the view that the trunk railway companies would not do so. Subscription money for the construction proved very difficult to generate. It was the action of a contractor partnership, Davies and Savin, in agreeing to accept shares as the majority of their payment for construction work, that saved the company from failure.

Llanymynech railway station was an important junction station on the Cambrian Railways mainline from Welshpool, Powys to Oswestry, Shropshire, serving the village of Llanymynech which is partly situated in Shropshire, England and partly in Powys, Wales.