The "Baylor Massacre" (also "Skirmish Near Tappan", "Rebel Post Near Old Tapan", "Tappan Massacre", and "Raid on Old Tappan") was a British attack on September 27, 1778, which surprised the 3rd Regiment of Continental Light Dragoons under the command of Colonel George Baylor during the American Revolutionary War. It occurred in the present-day town of River Vale, New Jersey. The Continentals lost 69 soldiers killed, wounded, or captured. One British soldier was killed.