The Happy Canyon of Santa Barbara is an American Viticultural Area (AVA) located in Santa Barbara County, California. It was designated officially by the Alcohol and Tobacco Tax and Trade Bureau (TTB) in November 2009 and is the smallest AVA in Santa Barbara County when measured by land under vine, covering with of planted vine. The area comprises canyon terrain, hills, and river and creek basins to the east and south of the San Rafael Mountains, northwest of Lake Cachuma and north of the Santa Ynez River. Elevations within the AVA range from in the southwest corner to in the northeast corner, in the foothills of the San Rafael Range. It is home to six major vineyards and one active winery.
TTB received the petition from Wes Hagen, Vineyard Manager and Winemaker at Clos Pepe Vineyards, Lompoc, California, on behalf of Happy Canyon vintners and grape growers, proposing the establishment of the Happy Canyon of Santa Barbara American viticultural area.