Ecclesmachan (NT058736) is an historic village in West Lothian. It lies just north of Uphall on the B8046 road and just south of Threemiletown. The village is notable for its medieval origin parish church. As at 2001, the population of the civil parish of Ecclesmachan was 529 and was 811 in 1991.

West Lothian is one of the 32 council areas of Scotland, and was one of its historic counties. The county was called Linlithgowshire until 1925. The historic county was bounded geographically by the Avon to the west and the Almond to the east. The modern council area occupies a larger area than the historic county. It was reshaped following local government reforms in 1975: some areas in the west were transferred to Falkirk; some areas in the east were transferred to Edinburgh; and some areas that had formerly been part of Midlothian were added to West Lothian.