The Battle of Cobleskill (also known as the Cobleskill massacre) was an American Revolutionary War raid on the frontier settlement of Cobleskill, New York on May 30, 1778. The battle, having taken place in the modern-day village of Warnerville, NY near Cobleskill-Richmondville High School, marked the beginning of a phase in which Loyalists and Iroquois, encouraged and supplied by British authorities in the Province of Quebec, raided and destroyed numerous villages on what was then the United States western frontier of New York and Pennsylvania.