Route 67 is a 24.81-mile-long (39.93 km) north–south (though geographically more northeast-southwest) highway in western and central Massachusetts.

The highway runs north and east along the Quaboag River and under Interstate 90/Mass Pike, without an intersection.

Route 67 becomes concurrent with Route 19 in the center of Warren, running in a northeasterly direction for approximately three miles.

Route 67 then runs in a northeasterly direction into North Brookfield and becomes concurrent with Route 148 for about one mile (1.6 km) to the center of North Brookfield.

By 1933, that section was unnumbered and Route 67 had been assigned to the road from East Brookfield to Barre.