Princess Marie of Saxe-Altenburg (Alexandrina Mary Wilhelmina Catherine Charlotte Theresa Henrietta Louise Pauline Elizabeth Frederica Georgina; German: Alexandrine Marie Wilhelmine Katharine Charlotte Theresia Henriette Luise Pauline Elisabeth Friederike Georgine; 14 April 1818 – 9 January 1907) was Queen of Hanover and the consort of George V, a grandson of George III of the United Kingdom and Queen Charlotte.
