Maplelawn is an historic house and former estate located in Ottawa, Canada. The house was built between 1831 an 1834 as the centre of a farming estate by the Thomson family. In 1877 the Cole family bought the estate and lived there until 1989. The house is now owned by the National Capital Commission and it is a designated national historic site. It is particularly noted for the well preserved and rare walled garden next to the house, The Maplelawn Garden. Since 1999 the Maplelawn has been the location of the Keg Manor restaurant.