Okehampton is a town and civil parish in Devon, England, at the northern edge of Dartmoor, on the River Okement. The border of the Dartmoor National Park is just south of the town. Like many towns in the West Country, Okehampton grew on the Medieval wool trade. Notable buildings in the town include the 15th century Chapel of St James, and Okehampton Castle. The town is also home to the Museum of Dartmoor Life. Okehampton elected two members to the Unreformed House of Commons. The Reform Act 1832 abolished its representation as a rotten borough.