Marchmont is a residential area of Edinburgh, named for the then landowner, the Earl of Marchmont.

Marchmont may also refer to:

Places Marchmont, an archaic name for Roxburgh Castle, from which the following take their name Marchmont House, in Berwickshire Marchmont Estate, in Berwickshire A community of the Severn, Ontario, township Marchmont, New South Wales

Given names Marchmont Nedham, writer, publisher, and political commentator of the middle seventeenth century Marchmont Schwartz (1909–1991), college football head coach at Stanford

Other Earl of Marchmont, a title in the Peerage of Scotland Edith Marchmont, a female sleuth written by Julius Chambers Marchmont Herald, a Scottish officer of arms at the Court of the Lord Lyon King of Arms Marchmont (novel), a novel by Charlotte Turner Smith , a British cargo ship in service 1947–52

See also Marchment, surname