Dominick Browne, 1st Baron Oranmore and Browne PC (28 May 1787 – 30 January 1860), was an Irish politician. Browne was the son of Dominick Geoffrey Browne and his wife Margaret. She was the daughter of the Hon. George Browne, 4th son of John, 1st Earl of Altamont. His sister Henrietta (1789–1862) married Henry, Viscount Dillon and was ancestral to Clementine (the wife of Winston Churchill) and to the Mitford sisters.