The Zion – Mount Carmel Highway is a 25-mile (40 km) long road in Washington and Kane counties in southern Utah, United States, that is listed on the National Register of Historic Places and is a National Historic Civil Engineering Landmark.

It begins northeast of Springdale and runs east into Zion National Park, where it passes through the 1.1 miles (1.8 km) long Zion-Mount Carmel Tunnel.

After exiting the park, the highway continues east to U.S. Route 89 at Mount Carmel Junction.

Work on the tunnel was started in 1927 by the Nevada Construction Company and was completed in 1930 at a cost of $503,000 (equivalent to $10.04 million in 2023).

The Zion – Mount Carmel Highway was added to the National Register of Historic Places on July 7, 1987.