American wine refers to wine produced in the United States, with the most notable regions being California, Oregon, and Washington. The country has a diverse climate and geography, allowing for a wide variety of grape types, including Cabernet Sauvignon, Chardonnay, and Pinot Noir. The California wine industry is particularly famous, with the Napa Valley and Sonoma County being key areas for wine production. American wines have gained international recognition, with many wineries focusing on quality and innovation, contributing to the growing popularity of wine culture in the U.S.