Mendon Peak is a mountain located in Rutland County, Vermont.

The mountain is a spur off the west side of the Coolidge Range of the Green Mountains, and stands within the Calvin Coolidge State Forest.

Mendon Peak is on the Appalachian Mountain Club's list of the "Hundred Highest" peaks in New England.

Mendon Peak stands within the watershed of the Cold River, a tributary of Otter Creek, which drains into Lake Champlain, and thence into the Richelieu River in Québec, the Saint Lawrence River, and into the Gulf of Saint Lawrence.

The south side of Mendon drains via a stream into Sargent Brook, thence into Gould Brook and the Cold River.