Dalyellup, (pronounced Dal-yellup), is an outer southern suburb of Bunbury, a city in Western Australia, located within the Shire of Capel local government area. The suburb was established in 1999 when the Department of Housing and Works entered into a joint venture with Satterley Property Group to develop Dalyellup Beach Estate, a master-planned community which is expected to yield 3,000 lots by its completion in 2012. The area is embroiled in a controversy over toxic waste dumping.