Greenmount National Park is a national park in the locality of Greenmount, Western Australia, 22 kilometres (14 mi) east of Perth. It is one of the smaller national parks along the Darling Scarp and is a component of the Darling Range Regional Park.
Due to its proximity to John Forrest National Park, which used to be known as Greenmount National Park until 1928, and relationship to subsequent reserves to the south it is a vital scarp wildlife corridor. Bus tours were available from Perth in 1933 with Hill's Bus Tours offering passengers a tour around the park on Sundays in September.