Lady Alexandra Naldera Metcalfe, CBE (née Curzon; 20 March 1904 – 7 August 1995) was the third daughter of George Curzon, 1st Marquess Curzon of Kedleston and Viceroy of India, and Lord Curzon's first wife, the American mercantile heiress, Mary Victoria Curzon, Baroness Curzon of Kedleston (née Leiter). She was named after her godmother, Queen Alexandra and her place of conception, Naldehra, India. She and her two older sisters were the subjects of a biography by Anne de Courcy in The Viceroy's Daughters: The Lives of the Curzon Sisters.