Philip Bertie (c.1665 – 15 April 1728) was an English courtier and politician, the third son of Robert Bertie, 3rd Earl of Lindsey. Bertie was educated at Trinity College, Oxford, from which he took a BA in 1685, and trained a company of volunteers of foot from among the Oxford scholars to support James II during the Monmouth Rebellion. During the Glorious Revolution, however, he joined his uncle, the Earl of Danby, in raising support for William of Orange in the North of England. By 1691, he had been appointed a Gentleman Usher of the Privy Chamber to Queen Mary, an office he held until her death in 1694. While he was passed over as Vice-Chamberlain of the Household in 1692 in favor of his elder brother Peregrine, he was appointed Auditor of the Duchy of Cornwall that year as a reward for