Viña Errazuriz is a Chilean winery founded in 1870 in the Aconcagua Valley by Don Maximiano Errazuriz, who travelled on horseback beyond the established vineyards near Santiago to find the best possible terroir. At the time of the first release in 1873, the estate had over 300 hectares (740 acres) of vineyards. By 1890 this had risen to 700 hectares (1730 acres), making Errazuriz the largest single vineyard in the world.

The estate has seven vineyards in the warmer areas of the valley, planted mainly with Bordeaux varieties and Syrah with some Viognier. It also owns the Costa Estate in the coastal region of Aconcagua, about 7.5 miles (12km) from the Pacific Ocean, where Sauvignon Blanc, Pinot Noir and Chardonnay are also grown. There are several wineries - the original winery in Panquehue, built in 1870, is still in use (albeit more as a cellar door), and in 2010 the company opened the Don Maximiano Icon Winery, dedicated to the production of high-end wines.