Sister cities of Mary Tavy

Mary Tavy is a village with a population of around 600, located four miles north of Tavistock in Devon in south-west England; it is named after the River Tavy. It used to be home to the world's largest copper mine Wheal Friendship, as well as a number of lead and tin mines. It borders Dartmoor National Park. The village lies a mile or two north of Peter Tavy; both were shown as separate settlements in the Domesday Book entry of 1086.

St Mary's Parish Church has a pinnacled west tower built of granite, a south porch with old wagon roof and a south transept built in 1893.

To deter highwaymen from attacking travellers along the road between Tavistock and Okehampton, captured highwaymen were hanged from a gibbet on what is now known as 'Gibbet Hill'.

The topographer William Crossing was for part of his life resident at Mary Tavy. The Canadian financier James Henry Plummer was born here.