The Dundee Hills AVA is an American Viticultural Area located in Yamhill County, Oregon. It is entirely contained within the Willamette Valley AVA, and is approximately 28 miles (45 km) southwest of Portland, near the town of Dundee. The area is 6,940 acres (2,809 ha) in total size, with 1,300 acres (526 ha) planted with grapes. The Dundee Hills are a north-south oriented line of hills on the western side of the Willamette River valley.