Mount Washington is a town in Berkshire County, Massachusetts, United States.

It lies at the very southwestern corner of Massachusetts, bordering New York State and Salisbury, Connecticut.

The name of the town is a tribute to George Washington, who at the time of incorporation was Commander-in-Chief of the Continental Army during the American Revolutionary War.

It is bordered on the north by Egremont, on the east by Sheffield, on the south by Salisbury, Connecticut, on the southwest by the Whitehouse Crossing section of North East, New York, and on the west by Ancram and Copake, New York.

To the south, along the Connecticut border, stands another series of peaks including Mount Frissell.

Although the summit of this mountain rests within the town of Mount Washington, its southern slope is located in Connecticut and is that state's highest elevation.

Many brooks lie within the town, most of which feed into Roeliff Jansen Kill in Copake, New York.

Mount Washington is remote, with only four roads that lead out of the town, and only one, East Street, connected to the rest of Massachusetts via Egremont.

Mount Washington employs the open town meeting form of government, and is led by a board of selectmen and administrative assistant.

On the state level, Mount Washington is represented in the Massachusetts House of Representatives by the Fourth Berkshire district, which covers southern Berkshire County, as well as the westernmost towns in Hampden County.

[18] An ongoing tradition taking place in Mount Washington for more than eighty-five years is its annual Church Fair.

[19] On the first Saturday in August, the townspeople of Mount Washington have come together for decades to work as a community to raise money for charity.