Townville is a borough in Crawford County, Pennsylvania, United States. The population was 306 at the 2000 census. It was established in 1831.
Townville is located at 41°40′47″N 79°52′54″W / 41.67972°N 79.88167°W / 41.67972; -79.88167 (41.679679, -79.881731).
According to the United States Census Bureau, the borough has a total area of 0.6 square miles (1.5 km²), all of it land.