Perth Hills is a term used primarily for marketing purposes to identify the part of the Darling Scarp and hinterland east of the scarp that lies within the Shire of Mundaring, City of Swan, and the City of Kalamunda and as part of the constituent bodies belonging to the Eastern Metropolitan Regional Council of Perth, Western Australia.

The term is most commonly found on tourist maps, and on the government Department of Environment and Conservation pamphlets and materials relating to the regional headquarters at Mundaring Weir – The Perth Hills National Parks Centre[1][2] (formerly known as the Hills Forest Discovery Centre) and its "Nearer to Nature" programs and activities.

The climate of warmer days and cooler nights makes it a very different region to the neighbouring Swan Valley.

[8][9] The Australian Geographical Indication "Perth Hills" was entered in the Register of Protected Names on 25 March 1999.

[10] Bushfires in the area are often cited in news media as fires in the Perth Hills.