The Battle of Paoli, also known as the Battle of Paoli Tavern or the Paoli Massacre, was a battle in the Philadelphia campaign of the American Revolutionary War fought on September 20, 1777, in the area surrounding present-day Malvern, Pennsylvania. Following the Continental Army's retreat in the Battle of Brandywine and the aborted Battle of the Clouds, George Washington left a force behind under the command of Brigadier General Anthony Wayne to monitor and resist the British as they prepared to attack and occupy the revolutionary capital of Philadelphia.
On the evening of September 20, British forces under Major General Charles Grey led a surprise attack on Wayne's encampment near the Paoli Tavern in present-day Malvern, resulting in many American casualties. Due to American propagandists making false claims that the British gave no quarter to Wayne's troops, the engagement came to be known in the United States as the "Paoli Massacre."