Francis George Hugh Seymour, 5th Marquess of Hertford, known as Francis Seymour until 1870, was a British army officer, courtier and Conservative politician. He served as Lord Chamberlain of the Household under Benjamin Disraeli from 1874 to 1879.

The Lord Chamberlain of the Household is the most senior officer of the Royal Household of the United Kingdom, supervising the departments which support and provide advice to the Sovereign of the United Kingdom while also acting as the main channel of communication between the Sovereign and the House of Lords. The office organises all ceremonial activity such as garden parties, state visits, royal weddings, and the State Opening of Parliament. They also oversee the Royal Mews and Royal Travel, as well as the ceremony around the awarding of honours.