Red Mountain is an American Viticultural Area (AVA) that encompasses the local region surrounding Red Mountain in Benton County, Washington. The viticultural area was formally recognized on June 11, 2001 by the Bureau of Alcohol, Tobacco and Firearms (ATF), Treasury after reviewing the petition submitted by Lorne Jacobson of Hedges Cellars to establish an area known as "Red Mountain." It lies entirely within the Yakima Valley and vast Columbia Valley appellations and is the smallest AVA in the state at only 4,040 acres (6.31 sq mi) in area and lies between Benton City and the City of West Richland. The area has more than 2,225 acres (900 ha) under cultivation of primarily red varietals including Cabernet Sauvignon, Merlot, Sangiovese, Cabernet Franc and Syrah. The reputation of the area's wines has brought Red Mountain worldwide attention and acclaim for producing some of the most desired Washington State vintage wines.

Red Mountain is located in the southeast corner of Washington state near the Tri-Cities between Rattlesnake Mountain and Candy Mountain. This region is situated among the Columbia, Snake and Yakima Rivers. The mountain covers an area of approximately 4,040 acres (6.31 sq mi). Its name is derived from the red-wine springtime bloom of the drooping brome or "cheatgrass" on its slopes.