North Dakota Highway 68 (ND 68) is a 28.124-mile-long (45.261 km) east–west state highway in the U.S. state of North Dakota.

ND 68's western terminus is a continuation as Montana Highway 23 (MT 23) at the Montana border, and the eastern terminus is at U.S. Route 85 (US 85) south of Alexander.

[1] The entire route is in McKenzie County.