James Harold Wilson, Baron Wilson of Rievaulx, KG, OBE, FRS, FSS, PC (11 mis Meurth 1916 – 24 mis Me 1995) o politiger Parti Lavur Predennek, a sodha avel Pennmenyster Ruwvaneth Unys diwweyth; a 1964-70 ha 1974-76.