Valentine Augustus Browne, 4th Earl of Kenmare KP, PC (16 May 1825 – 9 February 1905), 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.