The Avocet Line is the railway line in Devon, England connecting Exeter with Exmouth. It was originally built by the London and South Western Railway, and was historically known as the Exmouth branch railway. The line follows the Exe Estuary for about half of its route, from just outside Topsham to Exmouth, giving views of the estuary. The line is named after the pied avocet, which lives in the estuary.

Devon is a ceremonial county in South West England. It is bordered by the Bristol Channel to the north, Somerset and Dorset to the east, the English Channel to the south, and Cornwall to the west. The city of Plymouth is the largest settlement, and the city of Exeter is the county town.