Bennington Battle Day is a state holiday unique to Vermont in the United States of America, commemorated every year on August 16. This holiday is to celebrate the critical victory at the Battle of Bennington during the American Revolutionary War in 1777. The day is marked by various ceremonies, historical reenactments, and festivities across the state.

The Battle of Bennington was a significant event in the Revolutionary War, as it was seen as a turning point in the conflict. The battle took place when approximately 2,000 American rebels, led by General John Stark, successfully defended their store of weapons and supplies from British forces. The victory boosted the morale of the American forces and led to increased support from other colonies as well.

In the contemporary observance of Bennington Battle Day, people across Vermont take part in numerous activities to celebrate and remember this historic event. Many schools and public offices remain closed, and a variety of events are organized, including parades showing the revolutionary patriots. Bennington Battle Monument, the tallest man-made structure in Vermont, also becomes a major attraction on this day, drawing thousands of locals and tourists alike.