The "Big 6" is a widely recognized term in the wine industry that refers to the six most popular, globally planted, and commercially dominant grape varieties that form the foundation of modern winemaking. This classic group comprises three white wine grapes—Chardonnay, Sauvignon Blanc, and Riesling—alongside three red wine grapes—Cabernet Sauvignon, Merlot, and Pinot Noir. These noble grapes are cultivated across nearly every major wine-producing region in the world, establishing the benchmark flavor profiles, styles, and market demand that drive global wine consumption.