Darch is a suburb of Perth, Western Australia, located within the City of Wanneroo approximately 17 kilometres north of the central business district. Previously part of Landsdale, much of the suburb was rural in character until the late 1990s. It was named after an early settler family in the area, with the name being approved in 1997. The area was subsequently opened to residential development, especially from 2001 onwards, as part of Cell 6 of the East Wanneroo Development Area.