Holsworthy is a small market town and civil parish in the local government district of Torridge, Devon, England. The county town of Exeter is 36.4 miles (58.6 km) to the east. The river Deer, a tributary of the river Tamar, forms the western boundary of the parish, which includes the village of Brandis Corner.
According to the 2011 census the population of Holsworthy was 2,641.