Colonel Valentine Augustus Browne, 4th Earl of Kenmare KP, PC, styled Viscount Castlerosse from 1853 to 1871, was a British courtier and Liberal politician. He held office in every Whig or Liberal administration between 1856 and 1886, notably as Lord Chamberlain of the Household under William Gladstone between 1880 and 1885 and in 1886.

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.