Thomasville is a census-designated place in northern Oregon County, Missouri. It is nine miles northwest of Alton on Route 99.
Thomasville was platted in 1846. The community was named for George Thomas, a pioneer settler. A post office called Thomasville was established in 1846, and remained in operation until 1979.
Coordinates: 36°47′21″N 91°31′56″W / 36.78917°N 91.53222°W