The Edinburgh and Dalkeith Railway was an early railway built to convey coal from pits in the vicinity of Dalkeith into the capital. It was a horse-operated line, with a terminus at St Leonards on the south side of Arthur's Seat.

Dalkeith is a town in Midlothian, Scotland, on the River Esk. It was granted a burgh of barony in 1401 and a burgh of regality in 1540. The settlement of Dalkeith grew southwestwards from its 12th-century castle . Dalkeith has a population of 12,342 people according to the 2011 census.