Battle Road, formerly known as the Old Concord Road and the Bay Road, is a historic road in Massachusetts, United States. It was formerly part of the main road connecting Lexington, Lincoln and Concord, three of the main towns involved in the American Revolutionary War. It was on Battle Road that thousands of colonial militia and British regulars fought during the redcoats' retreat from Concord to Boston on the morning and afternoon of April 19, 1775.