Ratho (Scottish Gaelic: Ràthach) is a village in the Rural West Edinburgh area of Edinburgh, Scotland. Its population at the 2011 census was 1,634 based on the 2010 definition of the locality. It was formerly in the old county of Midlothian. Newbridge and Kirkliston are other villages in the area. The Union Canal passes through Ratho. Edinburgh Airport is situated only 4 miles (7 km) away. The village has a high ratio of its older houses built from whin stone due to a whin quarry nearby. The older, historical, part of the village was designated a Conservation Area in 1971 by Midlothian County Council.