The Battle of Millstone, also known as the Battle of Van Nest's Mill, is a skirmish that occurs near the mill of Abraham Van Nest in Weston, New Jersey (near present-day Manville, New Jersey) on January 20, 1777, during the American Revolutionary War.

A British foraging party is flanked and driven off by forces composed mostly of New Jersey militia, depriving the British of their wagons and supplies.

This action is one of a series of skirmishes known as the Forage War that persists in northern New Jersey through the first few months of 1777, and it demonstrates that militia companies are capable of putting up a significant fight.