David Alastair Pearson Anderson, 2nd Viscount Waverley, was a British hereditary peer and physician. He trained as a physician in Germany and England, served in the Royal Air Force during the Second World War, and then specialised as a cardiologist. Having succeeded his father as Viscount Waverley in 1958, he also sat in the House of Lords where he regularly spoke on health matters and other interests of his.