Thrybergh Junction was a junction on the South Yorkshire Railway, Mexborough to Rotherham line situated about 1 mile south of Kilnhurst Central. The junction was originally controlled by a Manchester, Sheffield and Lincolnshire Railway signal box of the earliest design, almost square with a hipped roof built on stilts. The junction was originally known as Thrybergh Hall Junction and served the line to Kilnhurst Colliery, brickworks and another colliery interest at Warren Vale.