The Chiles Valley District is an American Viticultural Area located in Napa County, California and a sub-region within Napa Valley AVA. It was established by the Bureau of Alcohol, Tobacco and Firearms on April 19, 1999 after the ATF received the petition from Mr. Volker Eisele, owner of the Volker Eisele Vineyard and Winery proposing a new viticultural area in Napa County to be known as "Chiles Valley District."
The Chiles Valley is nestled in the Vaca Mountains above the northeast side of the Napa Valley. The appellation has a cooler climate than the main Napa Valley floor due to elevations of 600–1,200 feet (183–366 m) as well as a cooling breeze from the Pacific Ocean. The most planted grapes in Chiles Valley are Cabernet sauvignon, Zinfandel, Chardonnay, and Sauvignon blanc.