The Chiles Valley District is an American Viticultural Area (AVA) located in Napa County, California and a sub-region within Napa Valley AVA. It was established by the Bureau of Alcohol, Tobacco and Firearms (ATF) 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."