Tahmoor railway station is a heritage-listed railway station located on the Main South line in the town of Tahmoor, part of the Wollondilly Shire local government area of New South Wales, Australia. The property was added to the New South Wales State Heritage Register on 2 April 1999 where it is also known as the Tahmoor Railway Station Group and Lupton's Inn. The station opened on 13 July 1919 at the same time as a new alignment between Picton and Mittagong railway stations.