New England Route 26 was a multi-state state highway in the New England region of the United States. It ran from Portland, Maine, north and northwest via Errol, New Hampshire, to Lemington, Vermont. The number was assigned in 1922 as part of the New England Interstate Routes (also known as the Dixville Notch Way), and, other than being extended from U.S. Route 3 into Vermont, the route has changed little since then.