The Battle of Fishdam Ford was an attempted surprise attack by British forces under the command of Major James Wemyss against an encampment of Patriot militia under the command of local Brigadier General Thomas Sumter around 1 am on the morning of November 9, 1780, late in the American Revolutionary War. Wemyss was wounded and captured in the attack, which failed because of heightened security in Sumter's camp and because Wemyss did not wait until dawn to begin the attack.