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Perth Hills is an Australian wine region covering a long thin area running north–south just inland from Perth, the state capital of Western Australia. The region's form is due to the shape of the Darling Scarp, an escarpment stretching from the town of Bindoon in the north to Serpentine 70 miles (110km) to the south. Serpentine is home to the Serpentine-Pipehead Dam, the main water supply for Perth and the surrounding area.

Viticulture has been a constituent part of the region's agricultural make up for well over a hundred years, but for most of that time few ventures grew to any significant commercial scale. The arrival of Western Range Wines in the Chittering Valley (in the north of the region) has signaled a change in this respect, however. Western Range is a co-operative winery, built to crush and vinify the grapes grown by a number of individually owned vineyards now covering more than 300 acres (120ha).

As the name Perth Hills suggests, the region is characterized by its hilly topography, so the climate here varies noticeably depending on altitude and a vineyard's position relative to the hills themselves. The altitude varies from 500 to 1310ft (150–400m), with rainfall varying accordingly. On the inland side of the hills there is a drier, continental effect with greater diurnal temperature variation, compared to the more moderate, stable maritime effect on the coastal side. Irrespective of these factors, the typical Perth Hills harvest begins a full two or three weeks after that in the Swan Valley, just a short distance inland and to the north.

In the 1960s the area was surveyed and analyzed by Dr John Gladstones, the influential scientist responsible for identifying the potential of Margaret River as a quality wine region. Because of the high heat summation and sunshine hours in Perth Hills he compared it to the Douro in Portugal. The wines which come out of Perth Hills support this diagnosis, the best being full-bodied red table wines and fortified wines. These are typically made from Cabernet Sauvignon, Merlot and Shiraz, although the cooler Perth Hills sites have proved capable of producing high-quality Chardonnay and even Semillon.

Immediately to the south of this region lies Peel, and to the north-west the Swan Valley, which was once responsible for almost 95% of Western Australia's wine production.