The Battle of Cobleskill was an American Revolutionary War raid on the frontier settlement of Cobleskill, New York on May 30, 1778. The battle took place in what is now the hamlet of Warnerville, New York, near the modern Cobleskill-Richmondville High School. The raid marked the beginning of a phase in which Loyalists and Iroquois, encouraged and supplied by British authorities in the Province of Quebec, attacked and destroyed numerous villages on what was then the western frontier of New York and Pennsylvania. In October 1777, with the failure of British Lieutenant General John Burgoyne's campaign to the Hudson after the Battles of Saratoga (First and Second), the war in upstate New York became a frontier war. British leaders in the Province of Quebec supported Loyalist and Native American partisan fighters with supplies and armaments. In February 1778, Brant established a base of operations at Onaquaga (present-day Windsor, New York). He recruited a mix of Iroquois and Loyalists estimated to number between two and three hundred by the time he began his campaign in May. One of his objectives was to acquire provisions for his forces and those of John Butler, who was planning operations in the Susquehanna River valley. The settlement of Cobleskill, New York consisted of 20 families living on farms spread out along Cobleskill Creek.

It was part of the Schoharie Creek area, which was a significant source of food for the Patriot war effort. Its principal defense was the small local militia under Captain Christian Brown. When attacks by the Iroquois were rumored to be coming in the spring, the militia appealed for additional defenses. Continental Army Colonel Ichabod Alden sent a company of 30-40 men from his 7th Massachusetts Regiment, under Captain William Patrick, to reinforce the militia. On the morning of May 30, Brant laid a trap for Cobleskill's defenders. Despite Captain Brown's warning that the enemy might be setting a trap, Patrick pressed forward as the warriors withdrew, engaging them in a running battle. The bodies of Patrick and some of the others were later found horribly mutilated. Following the battle, the Indians burned all dwellings in the settlement except an old log cabin belonging to George Warner, a Committee of Safety member who they may have hoped to capture when he returned home. The British laid waste the whole settlement on Cobleskill by burning houses, barns, stables & shooting such horses and cattle as they could not conveniently catch to take away with them. The settlers of Cobleskill who were rendered destitute by the action received £200 in compensation for their troubles.