Filippo Antonio Gualterio (24 March 1660 – 21 April 1728) was made a papal nuncio to France (1700-1706) and cardinal of the Roman Catholic Church from 1706. Descending from an ancient family of Orvieto related to Pope Innocent X, he was grand-nephew of cardinal Carlo Gualterio and uncle of cardinal Luigi Gualterio. Nominated Cardinal Protector of Scotland, as of 1706, and England, as of 1717, he was one of the closest advisers to the Stuart Pretender, James Stuart, the would-be James III of England, who conferred upon his brother Giovanni Battista the Jacobite title of Earl of Dundee.