Guillaume Amfrye de Chaulieu (1639 – 27 June 1720), French poet and wit, was born at Fontenay, Normandy.

Guillaume early showed the wit that was to distinguish him, and gained the favor of the duke of Vendôme, who procured for him the monastery of Aumale and other benefices.

Louis Joseph, Duc de Vendôme, and his brother Philippe, grand prior of the Knights of Malta in France, at that time had a joint establishment at the Temple, where they gathered around them a very gay and reckless course.

He made an alacrity to Poland in the suite of the marquis de Béthune, hoping to make a career for himself in the court of John Sobieski; he saw one of the Polish king's campaigns in Ukraine, but returned to Paris without securing any advancement.

Saint-Simon says that the abbé helped his patron the grand prior to rob the duke of Vendôme and that the king sent orders that the princes should take the management of their affairs from him.