The Mountbatten family is a British dynasty that originated as a British branch of the German princely Battenberg family. The name was adopted on 14 July 1917, three days before the British royal family changed its name from "Saxe-Coburg and Gotha" to "Windsor", by members of the Battenberg family residing in the United Kingdom, due to rising anti-German sentiment among the British public during World War I. The name is a direct Anglicisation of the German Battenberg, the name of a small town in Hesse. The titles of count and later prince of Battenberg had been granted in the mid-19th century to a morganatic branch of the House of Hesse-Darmstadt, itself a cadet branch of the House of Hesse.

The House of Windsor is a British royal house, and currently the reigning house of the United Kingdom and the other Commonwealth realms. The royal house's name was inspired by the historic Windsor Castle estate. Since it was founded in 1917, there have been five British monarchs of the House of Windsor: George V, Edward VIII, George VI, Elizabeth II, and Charles III. The children and male-line descendants of Queen Elizabeth II and Prince Philip also genealogically belong to the House of Oldenburg since Philip was by birth a member of the Glücksburg branch of that house.