State Route 233 (SR 233) is a secondary state highway located in northwestern Middle Tennessee.

The length of the route is an estimated total of 23.7 miles (38.1 km) through southern Stewart and southwestern Montgomery Counties.

SR 233 goes on an easterly course, running parallel to the Cumberland River to enter Cumberland City, where it passes by the Cumberland Fossil Plant before entering downtown.

SR 233 continues to wind its way northeast through rural areas before coming to an end at a junction with US 79 (SR 76) on the western edge of Woodlawn.

The most notable point of interest along SR 233 is the TVA-operated Cumberland Fossil Plant.