Westville is a town in Adair County, Oklahoma, located in the foothills of the Ozark Mountains. Westville lies at the junction of U.S. Highways 59 and 62, and approximately 13 miles north of Stilwell, the county seat.

U.S. Highway 59 (US-59) heads along the eastern portion of the state of Oklahoma. US-59's 216.47-mile (348.37 km) route through Oklahoma takes it through the mountainous terrain of the eastern Oklahoma Ouachitas and Ozarks. US-59 serves several lakes and towns through Oklahoma's Green Country, including Grand Lake, a major recreation center. The route enters the state from Arkansas near Fogel, Arkansas, and ends at the Kansas state line south of Chetopa, Kansas.