Peregrine Bertie DL (ca. 1663 – 10 July 1711) was a British politician, the second son of Robert Bertie, 3rd Earl of Lindsey. Educated at the Middle Temple in 1679, Bertie first entered the House of Commons in 1685 in Boston, alongside his brother, Lord Willoughby de Eresby, and generally inclined towards the Tories. On 20 June 1685, he was commissioned a cornet in Lord Willoughby's independent troop of horse, raised to suppress the Monmouth Rebellion. In 1689, Bertie did not choose to stand for Parliament, and , a Whig, was returned alongside Lord Willoughby. In 1690, when Lord Willoughby was called to the House of Lords by writ of acceleration, Peregrine was returned at the ensuing by-election. However, he now showed leanings towards the Whigs, and solicited his half-uncle's brother-in-l