Twomey Cellars (pronounced too-me) is a California winery. It was established in 1999 by the Duncan Family, who have operated the successful Silver Oak Cellars in California since 1972. The Duncan Family started Twomey Cellars to pursue varietals other than Cabernet Sauvignon. Twomey has two wineries; one in Calistoga in the Napa Valley, and one in Healdsburg in the Russian River Valley, and produces Pinot noir, Merlot and Sauvignon blanc.