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.
In the original advertising campaign, Dalyellup was heavily promoted as "A village in the Forest by the Sea". Along this theme the local private Lutheran school is called "Ocean Forest".