Ozark Mountain AVA
| Wine region | |
| Type | American Viticultural Area |
|---|---|
| Year established | 1986 |
| Country | United States |
| Part of | Arkansas, Missouri, Oklahoma |
| Sub-regions | Altus AVA, Arkansas Mountain AVA, Hermann AVA, Ozark Highlands AVA |
| Growing season | 213 days |
| Climate region | Humid subtropical/continental |
| Precipitation (annual average) | 38 to 50 in (970–1,270 mm) |
| Soil conditions | Clay from deeply weathered, consolidated sedimentary and weathered volcanic rocks |
| Total area | 35,000,000 acres (55,000 sq mi) |
| Size of planted vineyards | 4,280 acres (1,730 ha) |
| Grapes produced | Catawba, Chambourcin, Chardonel, Concord, Norton, St. Vincent, Vidal blanc, Vignoles, Villard noir |
| No. of wineries | 40 |
Ozark Mountain is an American Viticultural Area (AVA) located in northwest Arkansas, southern Missouri, and northeast Oklahoma and the sixth largest AVA, encompassing 35,000,000 acres (55,000 sq mi). It was established on July 2, 1986, as the nation's 86th, Oklahoma's initial, Arkansas' second and Missouri's third AVA by the Bureau of Alcohol, Tobacco and Firearms (ATF), Treasury after reviewing the petition submitted by Mr. Al Wiederkehr of Wiederkehr Wine Cellars in Altus, Arkansas, on behalf of himself and local vintners proposing a viticultural area in southern Missouri, northern Arkansas, and northeastern Oklahoma named "Ozark Mountain." At the outset, there were about 4,280 acres (1,730 ha) under vine with approximately 35 wineries. As of 2025, there are four established appellations within its boundary that recognizes distinct regions whose climate, vineyard soil and growing conditions define unique viticulture areas. The hardiness zone in the region varies from 6a to 8a.